一个Java小游戏源码下载，抓不住的方块，用户可以通过鼠标抓取方块，但是无论用户怎样努力，方块总是朝着与鼠标相反的方向运动，总是抓不住方块。-A Java game source code download, catch box, users can grab the box with the mouse, but no matter how hard the user, the box is always moving with the mouse in the direction opposite to the movement, always catch box.