onoff.cpp

来自「Parallel port interfacing」· C++ 代码 · 共 19 行

//switch led on /off in Visual C++

#include <conio.h>
#include <windows.h>

int main()
{
	int counter;
	//10 loops
	for(counter = 0;counter<=9;counter++)
	{
	_outp(0x378,1); //output is high
	_sleep(250); //250 mS delay
	_outp(0x378,0); //output is low
	_sleep(250);
	}

	return 0;
}