51单片机，按键控制流水灯，流水灯控制

#include<at89x51.h> #include<intrins.h> #define uchar unsigned char #define uint unsigned int sbit left_light=P3^0; sbit right_light=P3^1; sbit shan_light=P3^2; void T0_Init(void) { TMOD=0X11; TH0=(65536-6000)/256; TL0=(65536-6000)%256; TH1=(65536-6000)/256; TL1=(65536-6000)%256; ET0=1; ET1=1; EA=1; P0=0x00; P2=0x00; } //void delay(uchar ms) //{ // uchar y; // while(ms--) // { // for(y=120;y>0;y--); // } //} void main(void) { T0_Init(); while(1) { if(left_light==0) { P0=0X7f; P2=0X7f; TR0=1; TR1=0; } if(right_light==0) { P0=0Xfe; P2=0Xfe; TR1=1; TR0=0; } if(shan_light==0) { P0=0xff; P2=0xff; } } } void timer0(void) interrupt 1 { TH0=(65536-6000)/256; TL0=(65536-6000)%256; P2=_cror_(P0,1); P0=_cror_(P0,1); } void timer1(void) interrupt 3 { TH1=(65536-6000)/256; TL1=(65536-6000)%256; P2=_crol_(P0,1); P0=_crol_(P0,1); }