[C++][linux][原创]时间的各种操作

Posted 2023-03-03 FL1623863129

#include <iostream>
#include <stdio.h>
#include <unistd.h>
#include <time.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>

using namespace std;

time_t GetTimeNow()

  time_t t = time(0);
  localtime(&t);
  return t;


std::string GetTimeStr(std::string format = "%Y-%m-%d %H:%M:%S")

  time_t t = time(0);
  localtime(&t);
  char tmp[32] = NULL;
  strftime(tmp, sizeof(tmp), format.c_str(), localtime(&t));
  std::string date(tmp);
  return date;

std::string GetTimeMSStr()

  struct timeval tv;
  struct timezone tz;
  struct tm *t;
  gettimeofday(&tv, &tz);
  // printf("tv_sec:%ld\\n",tv.tv_sec);
  // printf("tv_usec:%ld\\n",tv.tv_usec);
  // printf("tz_minuteswest:%d\\n",tz.tz_minuteswest);
  // printf("tz_dsttime:%d\\n",tz.tz_dsttime);
  t = localtime(&tv.tv_sec);
  // printf("