说明：  贪食蛇游戏，手机里有一款小游戏叫“贪食蛇”，又名贪吃蛇。就是一条小蛇，不停地在屏幕上游走，吃各个方向出现的蛋，越吃越长。只要蛇头碰到屏幕四周，或者碰到自己的身子，小蛇就立即毙命。
(Snake games, mobile phones, there are a little game called " Snake" , also known as Snake. That is a snake, ever walk on the screen and eat the eggs appeared in all directions, sharpen long. As long as the screen surrounded by snake heads met, or the tripping of his own body, snake killed immediately.)