Javascr ipt网页版贪吃蛇游戏，主要是使用Js数组形式来实现，游戏难易度有5级：一级，二级，三级，减速，加速。游戏操作说明：上下左右键控制蛇的转向，当吃的食物达到一定数量计数值加倍，当吃到类蛇身的食物时蛇身剪短但计数仍增加。

-Javascr ipt web version of Snake game, Js is mainly used to achieve the form of an array, the game difficulty is 5 stages: the first stage, level two, level three, deceleration, acceleration. Game operation: the next key control around the snake turn, when to eat food to reach a certain number of count double, when to eat snake snake cut class food but still increase the count.