c语言获取当前年月日时分秒

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#include <iostream>
using namespace std;
#include <stdio.h>
#include <time.h>
#include <sys/time.h>
typedef struct {

  int id;
  char *ptr;

} OSA_IpcShmHndl;
typedef unsigned int Uint32;    
#ifndef KB
#define KB ((Uint32)1024)
#endif
#define OSA_IPC_MBX_MSG_SIZE_MAX    (KB)
Uint32 OSA_getCurTimeInMsec()
{
	struct timeval tv;

	if (gettimeofday(&tv, NULL) < 0)
		return 0;

	return tv.tv_sec * 1000 + tv.tv_usec / 1000;
}
struct timeval OSA_getCurTimeInMsec_64()
{
	struct timeval tv;
	gettimeofday(&tv, NULL);
  return tv;
}
int main()
{
  struct timeval timestamp = OSA_getCurTimeInMsec_64(); 
  time_t time;
  time = timestamp.tv_sec;
  char str_t[26] = {0};
  struct tm* p_time =localtime(&time);
  strftime(str_t,26,"%Y-%m-%d %H:%M:%S\n",p_time);
  printf("%s\n",str_t);
  cout << "Hello, World!" << endl;
  return 0;
}

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