汇编?C语言? 我给你一个C语言的#include sbit pulse_out=P1^2;unsigned char t1;void main(){ TMOD=0x20; TH1=231; TL1=231; ET1=1; EA=1; TR1=1; while(1);}void t1_inter() interrupt 3{ t1++; if(t1==1) pulse_out=1; else pulse_out=0; if(t1==8) t1=0;}