你好!定时器最好不要用16进制编。什么意思
#include#define uchar unsigned charuchar num=0;sbit pulse=P1^0;void t0isr() interrupt 1{num++;if(num<6)pulse=1;else pulse=0;if(num>80)num=0;}main(){TMOD=0x02;TH0=6;TL0=6;ET0=1;TR0=1;EA=1;while(1);}