本程序基本实现了贪吃蛇的游戏功能，界面美观，通过键盘上的上下左右四个按钮可控制蛇的移动方向，获取水果或躲避毒果和墙壁，游戏结束界面可显示分数，按空格键可重新开始游戏。-This procedure is a basic implementation of snake game features, interface aesthetics, through the up and down or so four buttons on the keyboard to control the movin