iOS开发 - 最常用控件 UITableView详解

UITableView掌握点

设置UITableView的dataSource、delegate 
UITableView多组数据和单组数据的展示 
UITableViewCell的常见属性 
UITableView的性能优化（cell的循环利用） 
自定义Cell

如何展示数据

UITableView需要一个数据源(dataSource)来显示数据 
UITableView会向数据源查询一共有多少行数据以及每一行显示什么数据等 
没有设置数据源的UITableView只是个空壳 
凡是遵守UITableViewDataSource协议的OC对象，都可以是UITableView的数据源

UITableViewUITableViewDataSource

<code class="hljs objectivec has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@property</span> (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">nonatomic</span>, <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">assign</span>) <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">id</span> <<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableViewDataSource</span>> dataSource;</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li></ul>

<code class="hljs objectivec has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//调用数据源的下面方法得知一共有多少组数据</span>- (<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSInteger</span>)numberOfSectionsInTableView:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableView</span> *)tableView;<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//调用数据源的下面方法得知每一组有多少行数据</span>- (<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSInteger</span>)tableView:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableView</span> *)tableView numberOfRowsInSection:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSInteger</span>)section;<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//调用数据源的下面方法得知每一行显示什么内容</span>- (<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableViewCell</span> *)tableView:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableView</span> *)tableView cellForRowAtIndexPath:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSIndexPath</span> *)indexPath;</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li></ul>

MVC设计思想

MVC是一种设计思想，贯穿于整个iOS开发中，需要积累一定的项目经验，才能深刻体会其中的含义和好处

MVC中的三个角色

<code class="hljs cs has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//M：Model，模型数据</span><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//V：View，视图（界面）</span><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//C：Control，控制中心</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li></ul>

MVC的几个明显的特征和体现： 
View上面显示什么东西，取决于Model 
只要Model数据改了，View的显示状态会跟着更改 
Control负责初始化Model，并将Model传递给View去解析展示

UITableViewCell简介

UITableView的每一行都是一个UITableViewCell，通过dataSource的tableView:cellForRowAtIndexPath:方法来初始化每一行

UITableViewCell内部有个默认的子视图:contentView，contentView是UITableViewCell所显示内容的父视图，可显示一些辅助指示视图

辅助指示视图的作用是显示一个表示动作的图标，可以通过设置UITableViewCell的accessoryType来显示，默认是UITableViewCellAccessoryNone(不显示辅助指示视图)，其他值如下:

<code class="hljs  has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;">UITableViewCellAccessoryDisclosureIndicatorUITableViewCellAccessoryDetailDisclosureButtonUITableViewCellAccessoryCheckmark</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li></ul>

还可以通过cell的accessoryView属性来自定义辅助指示视图（比如往右边放一个开关）

UITableViewCell的contentView

contentView下默认有3个子视图 
其中2个是UILabel(通过UITableViewCell的textLabel和detailTextLabel属性访问) 
第3个是UIImageView(通过UITableViewCell的imageView属性访问) 
UITableViewCell还有一个UITableViewCellStyle属性，用于决定使用contentView的哪些子视图，以及这些子视图在contentView中的位置 

UITableViewCell结构

Cell的重用原理

iOS设备的内存有限，如果用UITableView显示成千上万条数据，就需要成千上万个UITableViewCell对象的话，那将会耗尽iOS设备的内存。要解决该问题，需要重用UITableViewCell对象

重用原理：当滚动列表时，部分UITableViewCell会移出窗口，UITableView会将窗口外的UITableViewCell放入一个对象池中，等待重用。当UITableView要求dataSource返回UITableViewCell时，dataSource会先查看这个对象池，如果池中有未使用的UITableViewCell，dataSource会用新的数据配置这个UITableViewCell，然后返回给UITableView，重新显示到窗口中，从而避免创建新对象

还有一个非常重要的问题：有时候需要自定义UITableViewCell(用一个子类继承UITableViewCell)，而且每一行用的不一定是同一种UITableViewCell，所以一个UITableView可能拥有不同类型的UITableViewCell，对象池中也会有很多不同类型的UITableViewCell，那么UITableView在重用UITableViewCell时可能会得到错误类型的UITableViewCell

解决方案：UITableViewCell有个NSString *reuseIdentifier属性，可以在初始化UITableViewCell的时候传入一个特定的字符串标识来设置reuseIdentifier(一般用UITableViewCell的类名)。当UITableView要求dataSource返回UITableViewCell时，先通过一个字符串标识到对象池中查找对应类型的UITableViewCell对象，如果有，就重用，如果没有，就传入这个字符串标识来初始化一个UITableViewCell对象

Cell的重用代码

<code class="hljs objectivec has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;">- (<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableViewCell</span> *)tableView:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableView</span> *)tableView cellForRowAtIndexPath:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSIndexPath</span> *)indexPath{    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 1.定义一个cell的标识</span>      <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">static</span> <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> *ID = @<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"mjcell"</span>;    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 2.从缓存池中取出cell</span>      <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableViewCell</span> *cell = [tableView dequeueReusableCellWithIdentifier:ID];    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 3.如果缓存池中没有cell</span>      <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">if</span> (cell == <span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">nil</span>) {        cell = [[<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableViewCell</span> alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:ID];    }    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 4.设置cell的属性...</span>      <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> cell;}</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li><li style="box-sizing: border-box; padding: 0px 5px;">18</li></ul>

使用xib封装一个view的步骤

1. 新建一个xib文件描述一个view的内部结构(假设叫做XXXCell.xib)
2. 新建一个自定义的类 (自定义类需要继承自系统自带的view, 继承自哪个类, 取决于xib根对象的Class)
3. 新建类的类名最好跟xib的文件名保持一致(比如类名就叫做XXXTgCell)
4. 将xib中的控件 和 自定义类的.m文件 进行连线
5. 提供一个类方法返回一个创建好的自定义view(屏蔽从xib加载的过程)
6. 提供一个模型属性让外界传递模型数据
7. 重写模型属性的setter方法,在这里将模型数据展示到对应的子控件上面

Delegate的使用场合

<code class="hljs autohotkey has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;">对象<span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">A</span>内部发生了一些事情,想通知对象B对象B想监听对象<span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">A</span>内部发生了什么事情对象<span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">A</span>想在自己的方法内部调用对象B的某个方法,并且对象<span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">A</span>不能对对象B有耦合依赖对象<span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">A</span>想传递数据给对象B……<span class="hljs-label" style="box-sizing: border-box;">以上情况,结果都一样:</span>对象B是对象<span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">A</span>的代理(delegate)</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li></ul>

先搞清楚谁是谁的代理(delegate)

定义代理协议,协议名称的命名规范:控件类名 + Delegate

定义代理方法 
代理方法一般都定义为@optional 
代理方法名都以控件名开头 
代理方法至少有1个参数,将控件本身传递出去

设置代理(delegate)对象 (比如myView.delegate = xxxx;) 
代理对象遵守协议 
代理对象实现协议里面该实现的方法

在恰当的时刻调用代理对象(delegate)的代理方法,通知代理发生了什么事情 
(在调用之前判断代理是否实现了该代理方法)

通过代码自定义cell(cell的高度不一致)

1.新建一个继承自UITableViewCell的类 
2.重写initWithStyle:reuseIdentifier:方法 
添加所有需要显示的子控件(不需要设置子控件的数据和frame, 子控件要添加到contentView中) 
进行子控件一次性的属性设置(有些属性只需要设置一次, 比如字体\固定的图片) 
3.提供2个模型 
数据模型: 存放文字数据\图片数据 
frame模型: 存放数据模型\所有子控件的frame\cell的高度 
4.cell拥有一个frame模型(不要直接拥有数据模型) 
5.重写frame模型属性的setter方法: 在这个方法中设置子控件的显示数据和frame 
6.frame模型数据的初始化已经采取懒加载的方式(每一个cell对应的frame模型数据只加载一次)

UITableView实例一： 城市列表的展示

数据源plist文件： 

<code class="hljs ruleslanguage has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-array" style="box-sizing: border-box;">#import </span><span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"ViewController.h"</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

<code class="hljs objectivec has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-class" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@interface</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">ViewController</span> ()<<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">UITableViewDataSource</span>,<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">UITableViewDelegate</span>></span><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@property</span> (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">weak</span>, <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">nonatomic</span>) <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">IBOutlet</span> <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableView</span> *tableView;<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@property</span> (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">weak</span>, <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">nonatomic</span>) <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">IBOutlet</span> UIToolbar *toolBar;<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@property</span> <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSArray</span> *provinces;<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@property</span> <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSArray</span> *cities;<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@end</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li></ul>

<code class="hljs java has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-annotation" style="color: rgb(155, 133, 157); box-sizing: border-box;">@implementation</span> ViewController- (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span>)viewDidLoad{    [<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">super</span> viewDidLoad];    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 载入数据</span>    NSBundle *mainbundle = [NSBundle mainBundle];    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//如果类型不给，需要在resource参数中给出后缀名</span>    self.provinces = [NSArray arrayWithContentsOfFile:[mainbundle pathForResource:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"provinces.plist"</span> ofType:nil]];    self.cities =[NSArray arrayWithContentsOfFile:[mainbundle pathForResource:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"cities.plist"</span> ofType:nil]];    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//处理toolBar的按钮事件绑定</span>    NSArray *items=self.toolBar.items;    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">for</span> (UIBarButtonItem *item in items) {        <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">if</span> (item.title) {            NSLog(@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"当前的item: %@"</span>,item.title);            [item setAction:<span class="hljs-annotation" style="color: rgb(155, 133, 157); box-sizing: border-box;">@selector</span>(toolBarItemClick:)];        }    }}#pragma mark -  UITableViewDataSouce 数据源方法<span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/** *  Section的个数,一共有多少组数据 */</span>-(NSInteger) numberOfSectionsInTableView:(UITableView *)tableView{    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> self.provinces.count;}<span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/** *  第section组有多少行 */</span>-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> [self.cities[section] count];}<span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/** *  每一行显示的内容(cell) */</span>-(UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{    NSLog(@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"TableView来获取内容:section:%d,row:%d"</span>,indexPath.section,indexPath.row);    UITableViewCell *cell =[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:nil];    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//取cities中的城市数组</span>    NSArray *city = self.cities[indexPath.section];    cell.textLabel.text =city[indexPath.row];    [cell setSelectionStyle:UITableViewCellSelectionStyleNone];    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//如果当前的cell是被选中的，则设置其选中的accessoryType</span>    NSArray *selpaths =[tableView indexPathsForSelectedRows];    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">if</span> ([selpaths containsObject:indexPath]) {        cell.accessoryType = UITableViewCellAccessoryCheckmark;    }    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> cell;}<span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/** *  添加索引 */</span>- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView{    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> self.provinces;}<span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/** *  显示第section组的头部标题 */</span>-(NSString*) tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> self.provinces[section];<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//每个省的名称</span>}#pragma mark － UITableViewDelegate 代理方法<span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/** *  即将被选中时调用 */</span>-(NSIndexPath *) tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath{    NSLog(@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"section:%d,row:%d即将被选中"</span>,indexPath.section,indexPath.row);    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> indexPath;}<span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/** *  当前行已经被选中时调用 */</span>-(<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span>)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{    NSLog(@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"section:%d,row:%d已经被选中"</span>,indexPath.section,indexPath.row);    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//设置其accessoryType 为CheckMark</span>    UITableViewCell *cell=[tableView cellForRowAtIndexPath:indexPath];    [cell setAccessoryType:UITableViewCellAccessoryCheckmark];}<span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/** *  当前行即将被取消选中时调用 */</span>-(NSIndexPath *)tableView:(UITableView *)tableView willDeselectRowAtIndexPath:(NSIndexPath *)indexPath{    NSLog(@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"section:%d,row:%d即将被取消被选中"</span>,indexPath.section,indexPath.row);    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> indexPath;}<span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/** *  当前行被取消选中时调用 */</span>-(<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span>)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath{    UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];    [cell setAccessoryType:UITableViewCellAccessoryNone];    NSLog(@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"section:%d,row:%d已经被取消被选中"</span>,indexPath.section,indexPath.row);}#pragma mark - 事件方法<span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/** *  点击按钮 */</span>- (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span>)toolBarItemClick:(UIBarButtonItem *)sender{    NSLog(@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"按钮: %@被点击了"</span>,sender.title);    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">if</span> (sender.tag==<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">3</span>) {        NSArray * selIndexLst = [self.tableView indexPathsForSelectedRows];        NSLog(@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"selIndex:%@"</span>,selIndexLst);        <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span>;    }}<span class="hljs-annotation" style="color: rgb(155, 133, 157); box-sizing: border-box;">@end</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li><li style="box-sizing: border-box; padding: 0px 5px;">18</li><li style="box-sizing: border-box; padding: 0px 5px;">19</li><li style="box-sizing: border-box; padding: 0px 5px;">20</li><li style="box-sizing: border-box; padding: 0px 5px;">21</li><li style="box-sizing: border-box; padding: 0px 5px;">22</li><li style="box-sizing: border-box; padding: 0px 5px;">23</li><li style="box-sizing: border-box; padding: 0px 5px;">24</li><li style="box-sizing: border-box; padding: 0px 5px;">25</li><li style="box-sizing: border-box; padding: 0px 5px;">26</li><li style="box-sizing: border-box; padding: 0px 5px;">27</li><li style="box-sizing: border-box; padding: 0px 5px;">28</li><li style="box-sizing: border-box; padding: 0px 5px;">29</li><li style="box-sizing: border-box; padding: 0px 5px;">30</li><li style="box-sizing: border-box; padding: 0px 5px;">31</li><li style="box-sizing: border-box; padding: 0px 5px;">32</li><li style="box-sizing: border-box; padding: 0px 5px;">33</li><li style="box-sizing: border-box; padding: 0px 5px;">34</li><li style="box-sizing: border-box; padding: 0px 5px;">35</li><li style="box-sizing: border-box; padding: 0px 5px;">36</li><li style="box-sizing: border-box; padding: 0px 5px;">37</li><li style="box-sizing: border-box; padding: 0px 5px;">38</li><li style="box-sizing: border-box; padding: 0px 5px;">39</li><li style="box-sizing: border-box; padding: 0px 5px;">40</li><li style="box-sizing: border-box; padding: 0px 5px;">41</li><li style="box-sizing: border-box; padding: 0px 5px;">42</li><li style="box-sizing: border-box; padding: 0px 5px;">43</li><li style="box-sizing: border-box; padding: 0px 5px;">44</li><li style="box-sizing: border-box; padding: 0px 5px;">45</li><li style="box-sizing: border-box; padding: 0px 5px;">46</li><li style="box-sizing: border-box; padding: 0px 5px;">47</li><li style="box-sizing: border-box; padding: 0px 5px;">48</li><li style="box-sizing: border-box; padding: 0px 5px;">49</li><li style="box-sizing: border-box; padding: 0px 5px;">50</li><li style="box-sizing: border-box; padding: 0px 5px;">51</li><li style="box-sizing: border-box; padding: 0px 5px;">52</li><li style="box-sizing: border-box; padding: 0px 5px;">53</li><li style="box-sizing: border-box; padding: 0px 5px;">54</li><li style="box-sizing: border-box; padding: 0px 5px;">55</li><li style="box-sizing: border-box; padding: 0px 5px;">56</li><li style="box-sizing: border-box; padding: 0px 5px;">57</li><li style="box-sizing: border-box; padding: 0px 5px;">58</li><li style="box-sizing: border-box; padding: 0px 5px;">59</li><li style="box-sizing: border-box; padding: 0px 5px;">60</li><li style="box-sizing: border-box; padding: 0px 5px;">61</li><li style="box-sizing: border-box; padding: 0px 5px;">62</li><li style="box-sizing: border-box; padding: 0px 5px;">63</li><li style="box-sizing: border-box; padding: 0px 5px;">64</li><li style="box-sizing: border-box; padding: 0px 5px;">65</li><li style="box-sizing: border-box; padding: 0px 5px;">66</li><li style="box-sizing: border-box; padding: 0px 5px;">67</li><li style="box-sizing: border-box; padding: 0px 5px;">68</li><li style="box-sizing: border-box; padding: 0px 5px;">69</li><li style="box-sizing: border-box; padding: 0px 5px;">70</li><li style="box-sizing: border-box; padding: 0px 5px;">71</li><li style="box-sizing: border-box; padding: 0px 5px;">72</li><li style="box-sizing: border-box; padding: 0px 5px;">73</li><li style="box-sizing: border-box; padding: 0px 5px;">74</li><li style="box-sizing: border-box; padding: 0px 5px;">75</li><li style="box-sizing: border-box; padding: 0px 5px;">76</li><li style="box-sizing: border-box; padding: 0px 5px;">77</li><li style="box-sizing: border-box; padding: 0px 5px;">78</li><li style="box-sizing: border-box; padding: 0px 5px;">79</li><li style="box-sizing: border-box; padding: 0px 5px;">80</li><li style="box-sizing: border-box; padding: 0px 5px;">81</li><li style="box-sizing: border-box; padding: 0px 5px;">82</li><li style="box-sizing: border-box; padding: 0px 5px;">83</li><li style="box-sizing: border-box; padding: 0px 5px;">84</li><li style="box-sizing: border-box; padding: 0px 5px;">85</li><li style="box-sizing: border-box; padding: 0px 5px;">86</li><li style="box-sizing: border-box; padding: 0px 5px;">87</li><li style="box-sizing: border-box; padding: 0px 5px;">88</li><li style="box-sizing: border-box; padding: 0px 5px;">89</li><li style="box-sizing: border-box; padding: 0px 5px;">90</li><li style="box-sizing: border-box; padding: 0px 5px;">91</li><li style="box-sizing: border-box; padding: 0px 5px;">92</li><li style="box-sizing: border-box; padding: 0px 5px;">93</li><li style="box-sizing: border-box; padding: 0px 5px;">94</li><li style="box-sizing: border-box; padding: 0px 5px;">95</li><li style="box-sizing: border-box; padding: 0px 5px;">96</li><li style="box-sizing: border-box; padding: 0px 5px;">97</li><li style="box-sizing: border-box; padding: 0px 5px;">98</li><li style="box-sizing: border-box; padding: 0px 5px;">99</li><li style="box-sizing: border-box; padding: 0px 5px;">100</li><li style="box-sizing: border-box; padding: 0px 5px;">101</li><li style="box-sizing: border-box; padding: 0px 5px;">102</li><li style="box-sizing: border-box; padding: 0px 5px;">103</li><li style="box-sizing: border-box; padding: 0px 5px;">104</li><li style="box-sizing: border-box; padding: 0px 5px;">105</li><li style="box-sizing: border-box; padding: 0px 5px;">106</li><li style="box-sizing: border-box; padding: 0px 5px;">107</li><li style="box-sizing: border-box; padding: 0px 5px;">108</li><li style="box-sizing: border-box; padding: 0px 5px;">109</li><li style="box-sizing: border-box; padding: 0px 5px;">110</li><li style="box-sizing: border-box; padding: 0px 5px;">111</li><li style="box-sizing: border-box; padding: 0px 5px;">112</li><li style="box-sizing: border-box; padding: 0px 5px;">113</li><li style="box-sizing: border-box; padding: 0px 5px;">114</li><li style="box-sizing: border-box; padding: 0px 5px;">115</li><li style="box-sizing: border-box; padding: 0px 5px;">116</li><li style="box-sizing: border-box; padding: 0px 5px;">117</li><li style="box-sizing: border-box; padding: 0px 5px;">118</li><li style="box-sizing: border-box; padding: 0px 5px;">119</li><li style="box-sizing: border-box; padding: 0px 5px;">120</li><li style="box-sizing: border-box; padding: 0px 5px;">121</li><li style="box-sizing: border-box; padding: 0px 5px;">122</li><li style="box-sizing: border-box; padding: 0px 5px;">123</li><li style="box-sizing: border-box; padding: 0px 5px;">124</li><li style="box-sizing: border-box; padding: 0px 5px;">125</li><li style="box-sizing: border-box; padding: 0px 5px;">126</li><li style="box-sizing: border-box; padding: 0px 5px;">127</li><li style="box-sizing: border-box; padding: 0px 5px;">128</li><li style="box-sizing: border-box; padding: 0px 5px;">129</li><li style="box-sizing: border-box; padding: 0px 5px;">130</li><li style="box-sizing: border-box; padding: 0px 5px;">131</li><li style="box-sizing: border-box; padding: 0px 5px;">132</li><li style="box-sizing: border-box; padding: 0px 5px;">133</li><li style="box-sizing: border-box; padding: 0px 5px;">134</li><li style="box-sizing: border-box; padding: 0px 5px;">135</li><li style="box-sizing: border-box; padding: 0px 5px;">136</li><li style="box-sizing: border-box; padding: 0px 5px;">137</li><li style="box-sizing: border-box; padding: 0px 5px;">138</li><li style="box-sizing: border-box; padding: 0px 5px;">139</li><li style="box-sizing: border-box; padding: 0px 5px;">140</li><li style="box-sizing: border-box; padding: 0px 5px;">141</li><li style="box-sizing: border-box; padding: 0px 5px;">142</li><li style="box-sizing: border-box; padding: 0px 5px;">143</li><li style="box-sizing: border-box; padding: 0px 5px;">144</li><li style="box-sizing: border-box; padding: 0px 5px;">145</li><li style="box-sizing: border-box; padding: 0px 5px;">146</li><li style="box-sizing: border-box; padding: 0px 5px;">147</li></ul>

效果图： 

UITableView实例二： 单组数据模型展示

数据源plist文件： 

<code class="hljs objectivec has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//模型类</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">#import <span class="hljs-title" style="box-sizing: border-box;"><Foundation/Foundation.h></span></span><span class="hljs-class" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@interface</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">Hero</span> : <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">NSObject</span></span><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@property</span>(<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">nonatomic</span>,copy) <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> * name;<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@property</span>(<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">nonatomic</span>,copy) <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> * icon;<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@property</span>(<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">nonatomic</span>,copy) <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> * intro;+ (instancetype)heroWithDict:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSDictionary</span> *)dict;- (instancetype)initWithDict:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSDictionary</span> *)dict;<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@end</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li></ul>

<code class="hljs objectivec has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">#import <span class="hljs-title" style="box-sizing: border-box;">"Hero.h"</span></span><span class="hljs-class" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@implementation</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">Hero</span></span>+ (instancetype)heroWithDict:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSDictionary</span> *)dict{    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> [[<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">self</span> alloc]initWithDict:dict];}- (instancetype)initWithDict:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSDictionary</span> *)dict{    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">if</span> (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">self</span>==[<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">super</span> init]) {        [<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">self</span> setValuesForKeysWithDictionary:dict];    }    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">self</span>;}<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@end</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li><li style="box-sizing: border-box; padding: 0px 5px;">18</li><li style="box-sizing: border-box; padding: 0px 5px;">19</li><li style="box-sizing: border-box; padding: 0px 5px;">20</li></ul>

<code class="hljs objectivec has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">#import <span class="hljs-title" style="box-sizing: border-box;">"ViewController.h"</span></span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">#import <span class="hljs-title" style="box-sizing: border-box;">"Hero.h"</span></span><span class="hljs-class" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@interface</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">ViewController</span> ()<<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">UITableViewDataSource</span>,<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">UITableViewDelegate</span>,<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">UIAlertViewDelegate</span>></span><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@property</span>(<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">nonatomic</span>,<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">strong</span>) <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSArray</span>* heros;<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@property</span> (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">weak</span>, <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">nonatomic</span>) <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">IBOutlet</span> <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableView</span> *tableView;<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@end</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li></ul>

<code class="hljs objectivec has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-class" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@implementation</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">ViewController</span></span>- (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span>)viewDidLoad {    [<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">super</span> viewDidLoad];}<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">/** *  隐藏标题栏 */</span>- (<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">BOOL</span>)prefersStatusBarHidden{    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">YES</span>;}<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//初始化</span>- (<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSArray</span> *)heros{    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">if</span> (_heros==<span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">nil</span>) {        <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//1.获得plist的全路径</span>        <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> * path=[[<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSBundle</span> mainBundle]pathForResource:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"heros.plist"</span> ofType:<span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">nil</span>];        <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//2.加载数组</span>        <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSArray</span> * dictArray=[<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSArray</span> arrayWithContentsOfFile:path];        <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//3.将dictArray里面的所有字典转成模型对象，放到新的数组中</span>        <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSMutableArray</span> *heroArray=[<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSMutableArray</span> array];        <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">for</span> (<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSDictionary</span> *dict in dictArray) {            <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//3.1创建模型对象</span>            Hero *hero=[Hero heroWithDict:dict];            <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//3.2添加模型对象到数组中</span>            [heroArray addObject:hero];        }        <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//4.赋值</span>        _heros=heroArray;    }    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> _heros;}<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">#pragma mark - 数据源方法</span>- (<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSInteger</span>)tableView:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableView</span> *)tableView numberOfRowsInSection:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSInteger</span>)section{    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">self</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.heros</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.count</span>;}<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">/** *  知识点一: cell的性能优化 * 1.通过一个标识去缓存池中寻找可循环利用的cell * 2.如果缓存池找不到可循环利用的cell，就会创建一个新的cell，给cell贴个标识 * 3.给cell设置新的数据 */</span><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">/** *  每当有一个cell进入视野范围内，就会调用 */</span>- (<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableViewCell</span> *)tableView:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableView</span> *)tableView cellForRowAtIndexPath:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSIndexPath</span> *)indexPath{    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//static修饰局部变量:可以保证局部变量只分配一次存储空间（只初始化一次）</span>    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">static</span> <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> * ID=@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"hero"</span>;    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//1.通过一个标识去缓存池中寻找可循环利用的cell,dequeue:出列（查找）</span>    <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableViewCell</span> * cell=[tableView dequeueReusableCellWithIdentifier:ID];    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//2.如果没有可循环利用cell</span>    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">if</span> (cell==<span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">nil</span>) {        cell=[[<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableViewCell</span> alloc]initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:ID];        <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSLog</span>(@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"－－－－－－缓存池中找不到，所以创建了cell－ %ld"</span>,(<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">long</span>)indexPath<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.row</span>);    }    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//3.取出模型</span>    Hero *hero=<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">self</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.heros</span>[indexPath<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.row</span>];    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//设置cell的数据</span>    cell<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.textLabel</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.text</span>=hero<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.name</span>;    cell<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.detailTextLabel</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.text</span>=hero<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.intro</span>;    cell<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.imageView</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.image</span>=[<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UIImage</span> imageNamed:hero<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.icon</span>];    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//设置cell右边指示器的类型</span>    cell<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.accessoryType</span>=UITableViewCellAccessoryDisclosureIndicator;    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//设置图片背景</span>    <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UIImageView</span> *bgView=[[<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UIImageView</span> alloc]init];    bgView<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.image</span>=[<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UIImage</span> imageNamed:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"buttondelete"</span>];    cell<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.backgroundView</span>=bgView;    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//设置选中背景</span>    <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UIView</span> *selectedbgView=[[<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UIView</span> alloc]init];    selectedbgView<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.backgroundColor</span>=[<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UIColor</span> greenColor];    cell<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.selectedBackgroundView</span>=selectedbgView;    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> cell;}<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">#pragma mark - 代理方法</span><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//控制与状态栏之间的高度</span>- (<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">CGFloat</span>)tableView:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableView</span> *)tableView heightForRowAtIndexPath:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSIndexPath</span> *)indexPath{    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">60</span>;}- (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span>)tableView:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">UITableView</span> *)tableView didSelectRowAtIndexPath:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSIndexPath</span> *)indexPath{    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//1.取得被点击这行对应的模型</span>    Hero *hero=<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">self</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.heros</span>[indexPath<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.row</span>];    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//弹框</span>    UIAlertView *alert=[[UIAlertView alloc]initWithTitle:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"数据展示"</span> message:<span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">nil</span> delegate:<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">self</span> cancelButtonTitle:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"取消"</span> otherButtonTitles:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"确定"</span>, <span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">nil</span>];    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//设置对话框的类型</span>    alert<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.alertViewStyle</span>=UIAlertViewStylePlainTextInput;    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//取得唯一的那个文本框,显示英雄的名称</span>    [alert textFieldAtIndex:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>]<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.text</span>=hero<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.name</span>;    [alert show];    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//绑定行号到alertView上</span>    alert<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.tag</span>=indexPath<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.row</span>;}<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//- (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath</span><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//{</span><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//    // Deselect : 取消选中</span><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//    NSLog(@"取消选中了第%d行", indexPath.row);</span><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//}</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">#pragma mark - alertView的代理方法</span>- (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span>)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSInteger</span>)buttonIndex{    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">if</span> (buttonIndex==<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>) <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span>;    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//1.取得文本框最后的文字</span>    <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> *name=[alertView textFieldAtIndex:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>]<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.text</span>;    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//2.修改模型属性</span>    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span> row=alertView<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.tag</span>;    Hero *hero=<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">self</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.heros</span>[row];    hero<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.name</span>=name;    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">/**     * 知识点二: 数据的刷新     *  reloadData:tableView会向数据源重新请求数据，重新调用数据源的相应方法取得数据     * 重新调用数据源的tableView:numberOfRowsInSection:获得行数     * 重新调用数据源的tableView:cellForRowAtIndexPath:得知每一行显示怎样的cell     */</span>    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//3.让tableView重新加载模型数据</span>    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//全部刷新</span>    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//[self.tableView reloadData];</span>    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//局部刷新</span>    <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSIndexPath</span> *path=[<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSIndexPath</span> indexPathForItem:row inSection:<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>];    [<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">self</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.tableView</span> reloadRowsAtIndexPaths:@[path] withRowAnimation:UITableViewRowAnimationBottom];}<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@end</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li><li style="box-sizing: border-box; padding: 0px 5px;">18</li><li style="box-sizing: border-box; padding: 0px 5px;">19</li><li style="box-sizing: border-box; padding: 0px 5px;">20</li><li style="box-sizing: border-box; padding: 0px 5px;">21</li><li style="box-sizing: border-box; padding: 0px 5px;">22</li><li style="box-sizing: border-box; padding: 0px 5px;">23</li><li style="box-sizing: border-box; padding: 0px 5px;">24</li><li style="box-sizing: border-box; padding: 0px 5px;">25</li><li style="box-sizing: border-box; padding: 0px 5px;">26</li><li style="box-sizing: border-box; padding: 0px 5px;">27</li><li style="box-sizing: border-box; padding: 0px 5px;">28</li><li style="box-sizing: border-box; padding: 0px 5px;">29</li><li style="box-sizing: border-box; padding: 0px 5px;">30</li><li style="box-sizing: border-box; padding: 0px 5px;">31</li><li style="box-sizing: border-box; padding: 0px 5px;">32</li><li style="box-sizing: border-box; padding: 0px 5px;">33</li><li style="box-sizing: border-box; padding: 0px 5px;">34</li><li style="box-sizing: border-box; padding: 0px 5px;">35</li><li style="box-sizing: border-box; padding: 0px 5px;">36</li><li style="box-sizing: border-box; padding: 0px 5px;">37</li><li style="box-sizing: border-box; padding: 0px 5px;">38</li><li style="box-sizing: border-box; padding: 0px 5px;">39</li><li style="box-sizing: border-box; padding: 0px 5px;">40</li><li style="box-sizing: border-box; padding: 0px 5px;">41</li><li style="box-sizing: border-box; padding: 0px 5px;">42</li><li style="box-sizing: border-box; padding: 0px 5px;">43</li><li style="box-sizing: border-box; padding: 0px 5px;">44</li><li style="box-sizing: border-box; padding: 0px 5px;">45</li><li style="box-sizing: border-box; padding: 0px 5px;">46</li><li style="box-sizing: border-box; padding: 0px 5px;">47</li><li style="box-sizing: border-box; padding: 0px 5px;">48</li><li style="box-sizing: border-box; padding: 0px 5px;">49</li><li style="box-sizing: border-box; padding: 0px 5px;">50</li><li style="box-sizing: border-box; padding: 0px 5px;">51</li><li style="box-sizing: border-box; padding: 0px 5px;">52</li><li style="box-sizing: border-box; padding: 0px 5px;">53</li><li style="box-sizing: border-box; padding: 0px 5px;">54</li><li style="box-sizing: border-box; padding: 0px 5px;">55</li><li style="box-sizing: border-box; padding: 0px 5px;">56</li><li style="box-sizing: border-box; padding: 0px 5px;">57</li><li style="box-sizing: border-box; padding: 0px 5px;">58</li><li style="box-sizing: border-box; padding: 0px 5px;">59</li><li style="box-sizing: border-box; padding: 0px 5px;">60</li><li style="box-sizing: border-box; padding: 0px 5px;">61</li><li style="box-sizing: border-box; padding: 0px 5px;">62</li><li style="box-sizing: border-box; padding: 0px 5px;">63</li><li style="box-sizing: border-box; padding: 0px 5px;">64</li><li style="box-sizing: border-box; padding: 0px 5px;">65</li><li style="box-sizing: border-box; padding: 0px 5px;">66</li><li style="box-sizing: border-box; padding: 0px 5px;">67</li><li style="box-sizing: border-box; padding: 0px 5px;">68</li><li style="box-sizing: border-box; padding: 0px 5px;">69</li><li style="box-sizing: border-box; padding: 0px 5px;">70</li><li style="box-sizing: border-box; padding: 0px 5px;">71</li><li style="box-sizing: border-box; padding: 0px 5px;">72</li><li style="box-sizing: border-box; padding: 0px 5px;">73</li><li style="box-sizing: border-box; padding: 0px 5px;">74</li><li style="box-sizing: border-box; padding: 0px 5px;">75</li><li style="box-sizing: border-box; padding: 0px 5px;">76</li><li style="box-sizing: border-box; padding: 0px 5px;">77</li><li style="box-sizing: border-box; padding: 0px 5px;">78</li><li style="box-sizing: border-box; padding: 0px 5px;">79</li><li style="box-sizing: border-box; padding: 0px 5px;">80</li><li style="box-sizing: border-box; padding: 0px 5px;">81</li><li style="box-sizing: border-box; padding: 0px 5px;">82</li><li style="box-sizing: border-box; padding: 0px 5px;">83</li><li style="box-sizing: border-box; padding: 0px 5px;">84</li><li style="box-sizing: border-box; padding: 0px 5px;">85</li><li style="box-sizing: border-box; padding: 0px 5px;">86</li><li style="box-sizing: border-box; padding: 0px 5px;">87</li><li style="box-sizing: border-box; padding: 0px 5px;">88</li><li style="box-sizing: border-box; padding: 0px 5px;">89</li><li style="box-sizing: border-box; padding: 0px 5px;">90</li><li style="box-sizing: border-box; padding: 0px 5px;">91</li><li style="box-sizing: border-box; padding: 0px 5px;">92</li><li style="box-sizing: border-box; padding: 0px 5px;">93</li><li style="box-sizing: border-box; padding: 0px 5px;">94</li><li style="box-sizing: border-box; padding: 0px 5px;">95</li><li style="box-sizing: border-box; padding: 0px 5px;">96</li><li style="box-sizing: border-box; padding: 0px 5px;">97</li><li style="box-sizing: border-box; padding: 0px 5px;">98</li><li style="box-sizing: border-box; padding: 0px 5px;">99</li><li style="box-sizing: border-box; padding: 0px 5px;">100</li><li style="box-sizing: border-box; padding: 0px 5px;">101</li><li style="box-sizing: border-box; padding: 0px 5px;">102</li><li style="box-sizing: border-box; padding: 0px 5px;">103</li><li style="box-sizing: border-box; padding: 0px 5px;">104</li><li style="box-sizing: border-box; padding: 0px 5px;">105</li><li style="box-sizing: border-box; padding: 0px 5px;">106</li><li style="box-sizing: border-box; padding: 0px 5px;">107</li><li style="box-sizing: border-box; padding: 0px 5px;">108</li><li style="box-sizing: border-box; padding: 0px 5px;">109</li><li style="box-sizing: border-box; padding: 0px 5px;">110</li><li style="box-sizing: border-box; padding: 0px 5px;">111</li><li style="box-sizing: border-box; padding: 0px 5px;">112</li><li style="box-sizing: border-box; padding: 0px 5px;">113</li><li style="box-sizing: border-box; padding: 0px 5px;">114</li><li style="box-sizing: border-box; padding: 0px 5px;">115</li><li style="box-sizing: border-box; padding: 0px 5px;">116</li><li style="box-sizing: border-box; padding: 0px 5px;">117</li><li style="box-sizing: border-box; padding: 0px 5px;">118</li><li style="box-sizing: border-box; padding: 0px 5px;">119</li><li style="box-sizing: border-box; padding: 0px 5px;">120</li><li style="box-sizing: border-box; padding: 0px 5px;">121</li><li style="box-sizing: border-box; padding: 0px 5px;">122</li><li style="box-sizing: border-box; padding: 0px 5px;">123</li><li style="box-sizing: border-box; padding: 0px 5px;">124</li><li style="box-sizing: border-box; padding: 0px 5px;">125</li><li style="box-sizing: border-box; padding: 0px 5px;">126</li><li style="box-sizing: border-box; padding: 0px 5px;">127</li><li style="box-sizing: border-box; padding: 0px 5px;">128</li><li style="box-sizing: border-box; padding: 0px 5px;">129</li><li style="box-sizing: border-box; padding: 0px 5px;">130</li><li style="box-sizing: border-box; padding: 0px 5px;">131</li><li style="box-sizing: border-box; padding: 0px 5px;">132</li><li style="box-sizing: border-box; padding: 0px 5px;">133</li><li style="box-sizing: border-box; padding: 0px 5px;">134</li><li style="box-sizing: border-box; padding: 0px 5px;">135</li><li style="box-sizing: border-box; padding: 0px 5px;">136</li><li style="box-sizing: border-box; padding: 0px 5px;">137</li><li style="box-sizing: border-box; padding: 0px 5px;">138</li><li style="box-sizing: border-box; padding: 0px 5px;">139</li><li style="box-sizing: border-box; padding: 0px 5px;">140</li><li style="box-sizing: border-box; padding: 0px 5px;">141</li><li style="box-sizing: border-box; padding: 0px 5px;">142</li><li style="box-sizing: border-box; padding: 0px 5px;">143</li><li style="box-sizing: border-box; padding: 0px 5px;">144</li><li style="box-sizing: border-box; padding: 0px 5px;">145</li><li style="box-sizing: border-box; padding: 0px 5px;">146</li><li style="box-sizing: border-box; padding: 0px 5px;">147</li><li style="box-sizing: border-box; padding: 0px 5px;">148</li><li style="box-sizing: border-box; padding: 0px 5px;">149</li><li style="box-sizing: border-box; padding: 0px 5px;">150</li><li style="box-sizing: border-box; padding: 0px 5px;">151</li><li style="box-sizing: border-box; padding: 0px 5px;">152</li><li style="box-sizing: border-box; padding: 0px 5px;">153</li><li style="box-sizing: border-box; padding: 0px 5px;">154</li><li style="box-sizing: border-box; padding: 0px 5px;">155</li><li style="box-sizing: border-box; padding: 0px 5px;">156</li><li style="box-sizing: border-box; padding: 0px 5px;">157</li><li style="box-sizing: border-box; padding: 0px 5px;">158</li><li style="box-sizing: border-box; padding: 0px 5px;">159</li><li style="box-sizing: border-box; padding: 0px 5px;">160</li><li style="box-sizing: border-box; padding: 0px 5px;">161</li><li style="box-sizing: border-box; padding: 0px 5px;">162</li><li style="box-sizing: border-box; padding: 0px 5px;">163</li><li style="box-sizing: border-box; padding: 0px 5px;">164</li><li style="box-sizing: border-box; padding: 0px 5px;">165</li><li style="box-sizing: border-box; padding: 0px 5px;">166</li><li style="box-sizing: border-box; padding: 0px 5px;">167</li><li style="box-sizing: border-box; padding: 0px 5px;">168</li><li style="box-sizing: border-box; padding: 0px 5px;">169</li></ul>

效果图：