贪吃蛇游戏 游戏开始时，通过控制键盘的上下左右键来控制小蛇的运动方向，每当小蛇吃到一个食物，小蛇增加一小段长度，当吃满12个食物时游戏会结束，此事会显示是否继续得提示，当按下“Y”时，游戏重新开始，难度会相应增加，按下“N”时，退出游戏。当小蛇撞到墙壁或者撞到自己时游戏结束，此时也会显示是否继续的提示，当按下“Y”时，游戏重新开始，按下“N”时，退出游戏。-Snake game the game starts, by controlling the keyboard arrow keys to control the snake' s direction of movement, whenever the snake eat a food, increase the short length of the snake, when to eat food at least 12 games will end, will show whether this was prompted to continue, when you press the " Y" , the game resumed, the difficulty will increase accordingly, press the " N" , quit the game. When the snake hit the wall or hit the end of the game yourself, at this time whether to continue the prompt will display when you press " Y" , the game start, press the " N" , quit the game.