实现了3D的基本功能，里面的流程控制值得借鉴。其实是参考了一本老的3D书做的，看过就知道-realized 3D basic functions, which control the flow is worth learning from. Is a reference to the old 3 D books, read on to know

此游戏是根据，经典小游戏：坦克大战的内容开发的。本游戏的开发流程简单明了，不管是从类的分装，还是代码的编写都没有用到太复杂的知识，可以让初学者一看便懂。-This game is based on the classic game: Battle City for content development. This game' s development process is simple, whether it is loaded from the sub-class, or writi