是的，你需要把cocos2d文件拖到你的项目中，然后才能使用.

Yes, you need to drag the cocos2d files into your project, then they will be available.

这是一个非常有用的分步资源，说明如何做到这一点.

This is a very helpful step-by-step resource on how to do that.

http://monoclestudios.com/cocos2d_whitepaper.html

就设计游戏而言，开始吧，玩一玩，看看示例代码.留言板上也有非常乐于助人的人.

As far as designing your game, get started, play around, and look at the sample code. There are also very helpful folks on the message board.

http://www.cocos2d-iphone.org/forum/

祝你好运！