51單片機按鍵代碼運用 求大神指點迷津

#include<reg51.h> typedef int u16; sbit k2=P3^0; unsigned char led[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80}; char i; void delay(u16 i) { while(i–); } void key()//定義獨立按鍵控制 { if(k20)//說明按下去了 { delay(

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