这个是在原java小程序，经过修改后，得到的贪吃蛇的小游戏 ！从整体上看，效果好了很多，但是，程序还很不稳定，页面跳动太快！-this is the original small java procedures, after revision, the Snake small game! From an overall perspective, a lot of good results, but the process is still very unstable, pages running fast!