鼠标左键单击(或双击)游戏窗口中的彩色小球，如果该小球的上、下、左、右的任意一个小球中有和该小球的颜色相同的话，那么所有这些小球将被删去，同时上面的小球会自动掉下来。如此操作，直到没有小球可以删除。-Click the left mouse button (or double-click) the game window in the small colored balls, if the ball up, down, left and right ball in any one and the same color ball, then all these little balls will be removed, while above the ball will automatically fall off. This operation until there are no ball can be deleted.