NSRange,NSPoint,NSSize,NSRect(基础)

////  main.m//  test1////  Created by mac on 15/4/24.//  Copyright (c) 2015年 mac. All rights reserved.//#import <Foundation/Foundation.h>int main(int argc, const char * argv[]) {    @autoreleasepool {        /*         常用结构体:         NSRange(location,length)         NSPoint/CGPoint         NSSize/CGSize         NSRect/CGRect         */                        //---------------------------------struct        typedef struct date{            int year;            int month;            int day;        } Date;                Date d = {2011,4,5};        //赋值顺序可以改变,一目了然        Date d2 ={.year = 234,.day = 243,.month = 34};                /*         Declaration:         typedef struct _NSRange {             NSUInteger location;             NSUInteger length;         } NSRange;        */        //---------------------------------Range        NSRange r1 = {2,5};//不用        NSRange r2 = {.location = 234,.length = 34};//不用        NSRange r3 = NSMakeRange(34, 34);//最常用                //查找木个字符窜在str中的范围        //location下标从0开始        NSString *str4 = @"i love you";        NSRange range = [str4 rangeOfString:@"ve 0"];        NSLog(@"loc = %ld, length = %ld",range.location,range.length);                //如果找不到,length= 0,location = NSNotFound = -1        NSRange range2 = [str4 rangeOfString:@"gg"];        //range2.location的类型为NSInteger == unsigned long        //location使用ld输出为9223372036854775807        NSLog(@"length = %ld,location = %ld\n", range2.location,range2.length);        //location使用%d输出为-1        NSLog(@"length = %d,location = %d", range2.location,range2.length);        //-1        NSLog(@"%d",NSNotFound);                                //------------------------------------Point                /*         Declaration:         struct CGPoint {             CGFloat x;             CGFloat y;         };         typedef struct CGPoint CGPoint;         */                CGPoint p1 = NSMakePoint(23, 43);        CGPoint p2 = CGPointMake(3, 34);                //------------------------------------Size                /*         Declaration:         struct CGSize {             CGFloat width;             CGFloat height;         };         typedef struct CGSize CGSize;         */                CGSize s1 = CGSizeMake(43, 4);        CGSize s2 = NSMakeSize(34, 34);                //-------------------------------------Rect                /*         Declaration:         struct CGRect {             CGPoint origin;             CGSize size;         };         typedef struct CGRect CGRect;         */                CGRect re1 = CGRectMake(34, 34, 43, 5);        CGRect re2 = NSMakeRect(34, 24, 34, 53);                //第一个参数是一个点,第二个是宽高范围        CGRect re3 = {p1,s1};        CGRect re4 = {{0,0},{24,65}};                    //--------------------------------------        //NextStep公司推出的Foundation框架,函数以NS开头        //使用前提添加CoreGraphics框架        //一些CG方法依赖另一个框架:选中工程项目--TARGETS--Build Phases--Link Binary Libraries--添加CoreGraphics frameWor                        //比较点是否相等        BOOL isEaual = CGPointEqualToPoint(p1, p2);        //CGSizeEqualToSize(<#CGSize size1#>, <#CGSize size2#>)        //CGRectEqualToRect(<#CGRect rect1#>, <#CGRect rect2#>)        NSLog(@"%d",isEaual);                        //CGPointZero == CGPointMake(0, 0);        //CGSizeZero ==CGSizeMake(0, 0);        //CGRectZero == CGRectMake(0, 0, 0, 0);        //判断一个点是否在一个矩形框里面        //CGRectContainsPoint(<#CGRect rect#>, <#CGPoint point#>)                       //打印结构体        NSLog(@"x = %f, y = %f , width = %f, heigt = %f"              ,re1.origin.x, re1.origin.y,re1.size.width,re1.size.height              );        //调用库方法,先转为字符串对象,再打印        NSString *str = NSStringFromPoint(p1);        NSString *str1 = NSStringFromSize(s1);        NSString *str2 = NSStringFromRect(re1);        NSString *str3 = NSStringFromRange(r1);        NSLog(@"%@ \n%@\n%@\n%@\n",str,str1,str2,str3);            //自定义命名函数        //-(CGRect) myRect(CGFloat x, CGFloat y, CGFloat width, CGFloat height)        //{        //    CGRect rect;        //    rect.origin.x = x;        //    rect.origin.y = y;        //    rect.size.width = width;        //    rect.size.height = height;        //        //    return rect;        //}        }        return 0;}