#include
void Delay(unsigned int a);
void main()
{
while(1)
{

P2=0x11;
Delay(80);
P2=0x22;
Delay(80);
P2=0x0c;
Delay(80); //其方波比為高低比為5ms；10ms
}
}
void Delay(unsigned int a)//0~65535
{
unsigned char b;
for(;a>0;a--)
{
for(b=110;b>0;b--);
}
}