用Java实现的一个吃豆子游戏，游戏规则 按空格键游戏开始；通过方向键控制吃豆者的运动方向，吃水果可恢复体力-Java implementation with a Pacman game, rules of the game press the space bar start of the game by the arrow keys to control the movement direction of those who eat beans, fruit restore phys