C++获取系统时间,精确到毫秒

//获取系统时间
vector<string> PinDetect::get_current_time()
{
    
    
	/*能精确到毫秒*/
	/*
	#include <windows.h>
	#include <iostream>
	*/
	SYSTEMTIME st = {
    
     0 };
	GetLocalTime(&st);  //获取当前时间 可精确到ms

	char tmpbuff[16];
	/*年*/
	sprintf(tmpbuff, "%d", st.wYear);
	std::string year = tmpbuff;
	/*月*/
	sprintf(tmpbuff, "%d", st.wMonth);
	std::string month = tmpbuff;
	/*日*/
	sprintf(tmpbuff, "%d", st.wDay);
	std::string day = tmpbuff;
	/*时*/
	sprintf(tmpbuff, "%d", st.wHour);
	std::string hour = tmpbuff;
	/*分*/
	sprintf(tmpbuff, "%d", st.wMinute);
	std::string minute = tmpbuff;
	/*秒*/
	sprintf(tmpbuff, "%d", st.wSecond);
	std::string second = tmpbuff;
	/*毫秒*/
	sprintf(tmpbuff, "%d", st.wMilliseconds);
	std::string millisecond = tmpbuff;

	std::vector<string>current_time = {
    
    };

	current_time.push_back(year + month + day);
	current_time.push_back(hour + minute + second);
	current_time.push_back(year + month + day + hour + minute + second);
	current_time.push_back(year + "_" + month + "_" + day + "_" + hour + "_" + minute + "_" + second + "_" + millisecond);

	return current_time;
}