使用Verilog HDL 实现了一个桌球游戏，并在DE2开发板上验证通过。-Use Verilog HDL to achieve a table tennis game, and through the verification on the DE2 development board.

球壁，球球碰撞轨迹改变。击打改变，尚未做高低杆。(The collision path of the ball and ball is changed. Beat change, not high and low rod.)