如何利用windosAPI计算程序运行时间 不使用VC的库，也就是说不跨系统，跨编译器

#include <iostream>
#include <windows.h>
using namespace std ;

int main(void)
{
LARGE_INTEGER BegainTime ;
LARGE_INTEGER EndTime ;
LARGE_INTEGER Frequency ;
QueryPerformanceFrequency(&Frequency);
QueryPerformanceCounter(&BegainTime) ;
//要测试的代码放在这里
QueryPerformanceCounter(&EndTime) ;
cout << ( EndTime.QuadPart - BegainTime.QuadPart )*1000 / Frequency.QuadPart ;

system("pause") ;
return 0 ;
}