本贪吃蛇游戏用java完成，可以暂停游戏，选择游戏等级，并且有操作指南，可以选择是否显示网格。游戏结束有评分，还可以更新分数。-The Snake game using java complete, you can pause the game, select the game level, and there are operational guidelines, you can choose whether to display grid. The end of a game score,