参考:
【C/C++】计时函数比较
#include <windows.h> LARGE_INTEGER t1, t2, tc; QueryPerformanceFrequency(&tc); QueryPerformanceCounter(&t1); //do something QueryPerformanceCounter(&t2); std::cout << "time:" << ((t2.QuadPart - t1.QuadPart)*1.0 / tc.QuadPart) <<"s"<< std::endl;
clock_t t1 = clock(); //do something clock_t t2 = clock(); double time = (double)(t2 - t1) / CLOCKS_PER_SEC;
原文链接: https://www.cnblogs.com/larry-xia/p/9727970.html
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