Unity中的C#学习(二)

承接之前的学习，从大纲出发，这章主要是理解和掌握一些基础的知识

1.脚本概念:在unity当中，脚本可被看为行为组件。

1.1可以在检视器中看到,公开的属性值可以在面板中动态赋值和通过拖拽的方式添加，通过挂在游戏对象上面进行执行.

2.变量与函数

using UnityEngine;using System.Collections;public class VariablesAndFunction{int myInt=5;void Start(){myInt = MultipleByTwo (myInt);}private int MultipleByTwo(int number){int ret;ret = myInt * 2;return ret;}}

3.脚本规范与语法：

<pre name="code" class="csharp">using UnityEngine;using System.Collections;//修饰符 类   类名    父类类作用区域起始位置public class BasicSyntax: MonoBehaviour{// 这个是单行注释

/*这个是多行注释

 *

 *

*///返回类型 方法名 void Start(){//类.静态方法 方法参数 tranform 来自于父类Debug.Log (transform.position.x);if (transform.position.y <= 5f) {Debug.Log ("I`m about to hit the Ground!");}}//类作用区域结束位置}

4.c#与js的语法区别

c#的脚本如下:

using UnityEngine;using System.Collections;public class ExampleCSharpSyntax: MonoBehaviour{int myInt=3;int MyFuntion(int number){int ret=myInt*numberreturn ret;}}

js的脚本如下:

#pragma strictvar myInt: int=3;function MyFunction(number:int):int{var ret=myInt*number;return ret;}

5.If语句

using UnityEngine;using System.Collections;public class IfStatements : MonoBehaviour {public float coffeeTempreature = 85.0f;public float hotLimitTempreature=70.0f;public float coldLimitTempreature=40.0f;void Update(){if (Input.GetKeyDown (KeyCode.Space))TempreatureTest ();coffeeTempreature -= Time.deltaTime * 5f;}void TempreatureTest(){if (coffeeTempreature > hotLimitTempreature) {Debug.Log ("Coffee is too hot");}else if(coffeeTempreature<coldLimitTempreature){Debug.Log ("Coffee is too cold.");}else{Debug.Log("Coffee is just right.");}}}

6.循环

<img src="http://img.blog.csdn.net/20160702112205043?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />

代码如下:

<pre name="code" class="csharp">using UnityEngine;using System.Collections;public class Loop : MonoBehaviour {int cupsInTheSink=4;void Start(){//while loopwhile(cupsInTheSink>0){Debug.Log ("I`ve washed a cup!");cupsInTheSink--;}//do while loopbool shouldContinue = false;do {print ("Hello World");} while(shouldContinue == true);//for loopint numEnemies=3;for (int i = 0; i < numEnemies; i++) {Debug.Log ("Creating enemy number: " + numEnemies);}//foreach loopstring [] strings=new string[3];strings[0]="First String";strings[1]="Second String";strings[2]="Thrid String";foreach (string item in strings) {print (item);}}}

7.作用域与修饰符

代码如下:

using UnityEngine;using System.Collections;public class ScopeAndAccessModifiers : MonoBehaviour {//共有变量可以在类的外部访问，并且在脚本被挂载的时候，被访问到public int alpha;//私有变量只可以在类的内部访问和使用private int beta=0;private int gamma=5;void Example(int pens,int crayons){int answer;answer = pens * crayons * alpha;Debug.Log (answer);}void Update(){Debug.Log ("Alpha is set to: " + alpha);}}

第二章的学习先到此结束，都比较基础，但是也很重要.