[C++][原创]计时器统计运行时间类

#pragma once
#ifndef TIME_H
#define TIME_H
#include <iostream>
#include <chrono>

class FIRCTimer
{
public:
	uint64_t  ElapsedMilliseconds;
	double ElapsedSeconds;
	FIRCTimer(bool do_start = false)
	{
		if (do_start)
			Start();
	}

	void Start()
	{
		m_start_point = std::chrono::high_resolution_clock::now();
	}
	void Stop()
	{
		m_end_point = std::chrono::high_resolution_clock::now();
		ElapsedMilliseconds = std::chrono::duration_cast<std::chrono::milliseconds>(m_end_point - m_start_point).count();
		ElapsedSeconds = ElapsedMilliseconds/1000;
	}


private:
	std::chrono::time_point<std::chrono::high_resolution_clock> m_start_point;
	std::chrono::time_point<std::chrono::high_resolution_clock> m_end_point;
};

#endif

#include <iostream>
#include <windows.h>
#include "FIRCTimer.h"
int main()
{
    FIRCTimer ft;
    ft.Start();
    Sleep(2000);
    ft.Stop();
    std::cout << ft.ElapsedSeconds<<"\n";
    std::cout << ft.ElapsedMilliseconds << "\n";
}