C++ method to get the current system time summary

This article illustrates how C++ gets the current system time. Share with you for your reference. The details are as follows:

Solution - advantages: use only C standard library; Cons: accurate to seconds

#include <time.h> 
#include <stdio.h>
int main( void ) 
{ 
  time_t t = time(0);
  char tmp[64]; 
  strftime(tmp,sizeof(tmp),"%Y/%m/%d %X %A  This year the first %j day  %z",localtime(&t));
  puts( tmp );
  return 0;
}

Scheme 2 advantages: can be accurate to the millisecond level; Cons: USES the Windows API

#include <windows.h> 
#include <stdio.h>
int main( void ) 
{ 
 SYSTEMTIME sys;
 GetLocalTime(&sys);
 printf("%4d/%02d/%02d %02d:%02d:%02d.%03d  week %1d/n",sys.wYear,sys.wMonth,sys.wDay,sys.wHour,sys.wMinute,sys.wSecond,sys.wMilliseconds,sys.wDayOfWeek);
 return 0;
}

Scheme three, advantages: the use of system functions, but also can modify the system time

#include<stdlib.h>
#include<iostream>
using namespace std;
void main()
{
  system("time");
}

Plan 4: convert the current time into seconds, and then convert the corresponding time

#include<iostream>
#include<ctime>
using namespace std;
int main()
{
 time_t now_time;
 now_time = time(NULL);
 cout<<now_time;
 return 0;
}

Hope that the article described in the C++ programming to help you.