Whack-a-mole game is a practical small game, entertainment is very strong, and can exercise the children's reaction speed, now on the market also appeared a lot of children's toys about whack-a-mole. This paper realized the basic function of the game of whack-a-mole, tells the story of the game design process, through the detailed design process for a beginner to understand the system design process based on PLD.%打地鼠游戏是一款实用性小游戏，娱乐性很强，且能够锻炼孩子们的反应速度，现在市面上也出现了很多关于打地鼠的儿童玩具。本文实现了的打地鼠游戏的基本功能，讲述了此游戏的设计实现过程，通过整个详细的设计过程让学习者了解到基于PLD的系统设计流程。
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