C++获取当前系统时间的方法总结

#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 本年第%j天 %z",localtime(&t));
  puts( tmp );
  return 0;
}

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

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

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