继电器定时控制

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#include “STC_NEW_8051.h“#define uchar unsigned char #define uint unsigned int bit alarm = 0; / unsigned int t=0; sbit beep=P44; sbit spk=P53;void delay05s() unsigned char i,j,k; for(i=0;i=5000) alarm = 1; t=0; TH0=(65536-2000*110592/120000)/256;TL0=(65536-2000*110592/120000)%256;