C 耗时统计代码片段
代码语言：javascript复制#include <iostream>
#include <chrono>
typedef std::chrono::milliseconds ms;
using clk = std::chrono::system_clock;
void do_my_work() {
// work code here
}
int main() {
auto begin_time = clk::now();
do_my_work();
auto end_time = clk::now();
auto duration_nn = std::chrono::duration_cast<ms>(end_time - begin_time);
std::cout << "timecost: " << (double)duration_nn.count() << " ms" << std::endl;
return 0;
}
