基于89C52的打地鼠游戏设计。游戏根据不同难度设有多关卡，通过缩短时间间隔提升游戏难度。附PCB设计。-Based play hamster game design 89C52. Depending on the game has more levels of difficulty, by shortening the time to enhance the difficulty of the game interval. Attached to the PCB design.