Linux下打印 C/C++ 程序运行的时间

auto startTime = std::chrono::high_resolution_clock::now(); 
// do something ...
auto endTime = std::chrono::duration_cast<std::chrono::microseconds>(std::chrono::high_resolution_clock::now() - startTime).count();
auto timeuse = endTime * 0.001;
printf("Function Used %f ms", timeuse);