这是一个简单的小游戏，代码没有优化（即没用类封装，当时编的时候没学过……）。希望能对同样是初学者的朋友有所帮助。-This is a simple game, the code is not optimized (ie, no type of packaging, when the time for never learned ... ...). The hope that it can also be helpful to us beginners.