说明：  贪吃蛇这款小游戏主要实现的功能是蛇吃一块东西就长长一截，游戏娱乐性强，面向小朋友的最佳选择。
(Snake main achievement of this game is the function of the snake to eat a piece of something to a long part of it, video games and strong, the best choice for children.)