矩陣按鍵 數碼管顯示

#include <reg52.h> #define uchar unsigned char #define uint unsigned int sbit BEEP = P3^7; uchar code DSY_CODE[]= {      0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e

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