计算程序运行时间

qq_1769172560

于 2019-10-16 17:25:54 发布

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本文链接：https://blog.youkuaiyun.com/qq_32563489/article/details/102589499

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	    LONGLONG t1, t2, persecond;
		QueryPerformanceFrequency((LARGE_INTEGER *) &persecond);   //询问系统一秒钟的频率
		QueryPerformanceCounter((LARGE_INTEGER *) &t1);
		......

		QueryPerformanceCounter((LARGE_INTEGER *) &t2);
		double time = (double)(t2 - t1)/persecond;

		CString str;
		str.Format(_T("系统已运行 %.12f 秒"),time);
		AfxMessageBox(str);