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详细论述了4×4矩阵式键盘识别显示系统,4×4矩阵式键盘原理及显示方法,描述了4×4矩阵式键盘软件编程和调试分析过程。
Discusses in detail the 4 × 4 matrix keyboard recognition display system, 4 × 4 matrix keyboard principle and display method, describes the 4 × 4 matrix keyboard software programming and debugging analysis process.