显示当前时间

Posted 2023-05-07

利用VC＋＋的WM_TIMER消息编写一个基于对话框的Win32程序，完成每秒在屏幕上显示当前时间的功能，获取当前时间可用MFC的CTime类
求程序，最好附有讲解

//OnUpdateTime() 是WM_TIMER的消息处理函数

COleDateTime dtCurrent; //用于获取系统时间
dtCurrent = COleDateTime::GetCurrentTime(); //获取系统当前时间

CString strDT = dtCurrent.Format("%Y-%m-%d %H:%M:%S"); //格式化时间
//下面可增加对时间的其他处理 如输出到控件...等等
//.....


//下面设置定时器
每秒产生一个消息即可....(略) 参考技术A 以下是头文件
#include <time.h>
#include <dos.h>
#include <iostream>
using namespace std;

class Time

public:
Time();
void SetTime(int hr,int min,int sec);
void Tick();
GetTime();
private:
int hour;
int minute;
int second;
;

以下是实现

#include "date.h"

Date::Date(int mn,int dy,int yt)

month=(mn>0&&mn<=12)?mn:1;
year=yt;
day=CheckDay(dy);
cout<<"Date object constructor for date\n";
Print();


void Date::Print() const

cout<<"the date in the object is:"
<<month<<"-"<<day<<"-"<<year<<endl;


int Date::CheckDay(int testDay)

static int DaysPerMonth[13]=0,31,28,31,30,
31,30,31,30,
31,30,31;
if(month!=2)

if(testDay>0&&testDay<=DaysPerMonth[month])

return testDay;

else
return 1;

else

int days=(year%400==0
||(year%4==0&&year%100!=0))?29:28;
if(testDay>0&&testDay<=days)
return testDay;
else
return 1;



void Date::NextDay()

static int DaysPerMonth[13]=0,31,28,31,30,
31,30,31,31,30,
31,30,31;
int days=DaysPerMonth[month];
if((day+1)%(days+1)==0)

day=1;

else
day=day+1;
if(day==1)

if((month+1)%13==0)

month=1;
year=year+1;

else
month=month+1;

Print();


int main()

Date testd(1,1,2003);
for(int i=1;i<300;i++)

testd.NextDay();

return 0;


#include "creatTime.h"

Time::Time()

struct tm *pt;
time_t t;
t=time(NULL);
pt=localtime(&t);
//cout<<pt;
hour=pt->tm_hour;
minute=pt->tm_min;
second=pt->tm_sec;
cout<<"the time is:->"<<hour
<<":"<<minute<<":"<<second<<endl;


void Time::SetTime(int hr,int min,int sec)

hour=(hr>=0&&hr<24)?hr:0;
minute=(min>=0&&min<60)?min:0;
second=(sec>=0&&sec<60)?sec:0;
cout<<"the time is:->"<<hour
<<":"<<minute<<":"<<second<<endl;


void Time::Tick()

second=(second+1)%60;
if(second==0)

minute=(minute+1)%60;
if(minute==0)

hour=(hour+1)%24;

else

hour=hour;


else

minute=minute;

cout<<"the time is:->"<<hour
<<":"<<minute<<":"<<second<<endl;


int main()

Time loctime;
loctime.SetTime(20,30,40);
Time t;
t.SetTime(55,20,77);
t.Tick();
return 0;

下边是关于日期是头文件
//#ifdef DATE_H
//#define DATE_H

#include<iostream>
using namespace std;

class Date

public:
Date(int=1,int=1,int=1990);
void NextDay();
void Print() const;
private:
int month;
int day;
int year;
int CheckDay(int);
;
//#endif

页面动态显示当前时间

$(document).ready(function(){
    display();
})

function display() {
    var time = new Date(); //获得当前时间
    var week = "日一二三四五六".charAt(time.getDay());
    var year = time.getYear() + 1900;
    var month = time.getMonth() + 1;
　　//获得小时、分钟、秒
    var hour = time.getHours(); 
    var minute = time.getMinutes();
    var second = time.getSeconds();
    if(minute < 10){ minute="0"+minute;}
    if(second < 10){ second = "0"+second; }
    
    var innerHTML = year + "年" + month + "月" + time.getDate() + "日 " + hour + ":" + minute + ":" + second + "  " + "星期" + week;
    $("#nowTime").html(innerHTML);
    setTimeout("display()", 1000);
}