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// Created by zhangrongxiang on 2017/10/21 22:58

// File main

#include <iostream>

#include <ctime>

#include <unistd.h>

using namespace std;

void one();

void two();

void three();

int main() {

one();

two();

int i = 0;

while (i++ < 10) {

sleep(1);

three();

}

void three() {

time_t rawtime;

struct tm *info;

char buffer[80];

time(&rawtime);

info = localtime(&rawtime);

strftime(buffer, 80, "%x - %I:%M:%S %p", info);

// printf("格式化的日期 & 时间 : |%s|\n", buffer );

cout << buffer << endl;

}

void two() {

time_t now = time(nullptr);

tm *pTm = localtime(&now);

cout << "year : " << pTm->tm_year + 1900 << endl;

cout << "month : " << pTm->tm_mon + 1 << endl;

cout << "tm_mday : " << pTm->tm_mday << endl;

cout << "tm_wday : " << pTm->tm_wday << endl;

cout << "tm_yday : " << pTm->tm_yday << endl;

}

void one() {

// 基于当前系统的当前日期/时间

time_t now = time(nullptr);

// 把 now 转换为字符串形式

char *dt = ctime(&now);

cout << "本地日期和时间：" << dt << endl;

// 把 now 转换为 tm 结构

tm *gmtm = gmtime(&now);

dt = asctime(gmtm);

cout << "UTC 日期和时间：" << dt << endl;

}