Unity 版本: 5.3.5.f1
Hello World工程
1.新建工程 HelloWorld
U3D可选2D和3D游戏
![](https://images2015.cnblogs.com/blog/198684/201609/198684-20160928210052563-1140007523.png)
2.新建C#脚本文件
在project栏的assets目录右键->create->script->C# script
![](https://images2015.cnblogs.com/blog/198684/201609/198684-20160928210053266-1312408039.png)
同时重命名成HelloWorld,双击即可打开
可以在Edit->preferences->External Tools中选择打开的编辑环境
![](https://images2015.cnblogs.com/blog/198684/201609/198684-20160928210054594-1060195109.png)
3.编写代码
除了红色方块框起来的代码,其余的代码都是U3D框架自动帮我们生成好的代码
![](https://images2015.cnblogs.com/blog/198684/201609/198684-20160928210055344-1871240680.png)
Start 里面一般做一些初始化操作
Update里面一般每桢执行一下
4.代码和Camera绑定
在hierarchy窗口选择MainCamera
inspector窗口会显示相关信息,此时把assets目录下的C#脚本直接拖放到inspector即可完成绑定
![](https://images2015.cnblogs.com/blog/198684/201609/198684-20160928210055860-1582041613.png)
或者点击Add Component->Script->HelloWorld
5.运行HelloWorld
点击播放按钮,即可看到屏幕输出HelloWorld
![](https://images2015.cnblogs.com/blog/198684/201609/198684-20160928210057078-1497019096.jpg)
6.保存场景
File->save scene as
![](https://images2015.cnblogs.com/blog/198684/201609/198684-20160928210057828-1316997911.png)
7.编译发布游戏
![](https://images2015.cnblogs.com/blog/198684/201609/198684-20160928210059969-1347965100.png)
player settings里面还要进行一些程序设置
比如图标,程序名称等....
![](https://images2015.cnblogs.com/blog/198684/201609/198684-20160928210101547-1648300557.png)
最后点击build按钮即可开始编译生成HelloWorld.exe
运行效果如下:
![](https://images2015.cnblogs.com/blog/198684/201609/198684-20160928210102344-147625284.jpg)