# include & ltintrins.h & gt
#定義ch P1
int num
void初始化()
{
EA = 1;
ET0 = 1;
TMOD = 0x 01;
TH0 =(65536-50000)/256;
TL0 =(65536-50000)% 256;
}
無效定時器()中斷0
{
TH0 =(65536-50000)/256;
TL0 =(65536-50000)% 256;
num++;
if(數字==10)
{
num = 0;
ch=_crol_(ch,1);
}
}
void main()
{
init();
while(1);
}