Js获取当前日期时间及其它操作

深藏阁楼爱情的钟 2022-08-13 16:46 258阅读 0赞

# [Js获取当前日期时间及其它操作][Js] #

var myDate = new Date();  
myDate.getYear();        //获取当前年份(2位)  
myDate.getFullYear();    //获取完整的年份(4位,1970-????)  
myDate.getMonth();       //获取当前月份(0-11,0代表1月)  
myDate.getDate();        //获取当前日(1-31)  
myDate.getDay();         //获取当前星期X(0-6,0代表星期天)  
myDate.getTime();        //获取当前时间(从1970.1.1开始的毫秒数)  
myDate.getHours();       //获取当前小时数(0-23)  
myDate.getMinutes();     //获取当前分钟数(0-59)  
myDate.getSeconds();     //获取当前秒数(0-59)  
myDate.getMilliseconds();    //获取当前毫秒数(0-999)  
myDate.toLocaleDateString();     //获取当前日期  
var mytime=myDate.toLocaleTimeString();     //获取当前时间  
myDate.toLocaleString( );        //获取日期与时间

[**日期时间**][Link 1]脚本库方法列表

[**Date**][Link 1].prototype.isLeapYear 判断闰年  
Date.prototype.Format 日期格式化  
Date.prototype.DateAdd 日期计算  
Date.prototype.DateDiff 比较日期差  
Date.prototype.toString 日期转字符串  
Date.prototype.toArray 日期分割为数组  
Date.prototype.DatePart 取日期的部分信息  
Date.prototype.MaxDayOfDate 取日期所在月的最大[**天数**][Link 1]  
Date.prototype.WeekNumOfYear 判断日期所在年的第几周  
StringToDate 字符串转日期型  
IsValidDate 验证日期有效性  
CheckDateTime 完整日期时间检查  
daysBetween 日期天数差

js代码：

//---------------------------------------------------    
// 判断闰年    
//---------------------------------------------------    
Date.prototype.isLeapYear = function()     
\{     
    return (0==this.getYear()%4&&((this.getYear()%100!=0)||(this.getYear()%400==0)));     
\}     
    
//---------------------------------------------------    
// 日期格式化    
// 格式 YYYY/yyyy/YY/yy 表示年份    
// MM/M 月份    
// W/w 星期    
// dd/DD/d/D 日期    
// hh/HH/h/H 时间    
// mm/m 分钟    
// ss/SS/s/S 秒    
//---------------------------------------------------    
Date.prototype.Format = function(formatStr)     
\{     
    var str = formatStr;     
    var Week = \['日','一','二','三','四','五','六'\];    
    
    str=str.replace(/yyyy|YYYY/,this.getFullYear());     
    str=str.replace(/yy|YY/,(this.getYear() % 100)>9?(this.getYear() % 100).toString():'0' + (this.getYear() % 100));     
    
    str=str.replace(/MM/,this.getMonth()>9?this.getMonth().toString():'0' + this.getMonth());     
    str=str.replace(/M/g,this.getMonth());     
    
    str=str.replace(/w|W/g,Week\[this.getDay()\]);     
    
    str=str.replace(/dd|DD/,this.getDate()>9?this.getDate().toString():'0' + this.getDate());     
    str=str.replace(/d|D/g,this.getDate());     
    
    str=str.replace(/hh|HH/,this.getHours()>9?this.getHours().toString():'0' + this.getHours());     
    str=str.replace(/h|H/g,this.getHours());     
    str=str.replace(/mm/,this.getMinutes()>9?this.getMinutes().toString():'0' + this.getMinutes());     
    str=str.replace(/m/g,this.getMinutes());     
    
    str=str.replace(/ss|SS/,this.getSeconds()>9?this.getSeconds().toString():'0' + this.getSeconds());     
    str=str.replace(/s|S/g,this.getSeconds());     
    
    return str;     
\}     
    
//+---------------------------------------------------    
//| 求两个时间的天数差 日期格式为 YYYY-MM-dd     
//+---------------------------------------------------    
function daysBetween(DateOne,DateTwo)    
\{     
    var OneMonth = DateOne.substring(5,DateOne.lastIndexOf ('-'));    
    var OneDay = DateOne.substring(DateOne.length,DateOne.lastIndexOf ('-')+1);    
    var OneYear = DateOne.substring(0,DateOne.indexOf ('-'));    
    
    var TwoMonth = DateTwo.substring(5,DateTwo.lastIndexOf ('-'));    
    var TwoDay = DateTwo.substring(DateTwo.length,DateTwo.lastIndexOf ('-')+1);    
    var TwoYear = DateTwo.substring(0,DateTwo.indexOf ('-'));    
    
    var cha=((Date.parse(OneMonth+'/'+OneDay+'/'+OneYear)- Date.parse(TwoMonth+'/'+TwoDay+'/'+TwoYear))/86400000);     
    return Math.abs(cha);    
\}    
    
    
//+---------------------------------------------------    
//| 日期计算    
//+---------------------------------------------------    
Date.prototype.DateAdd = function(strInterval, Number) \{     
    var dtTmp = this;    
    switch (strInterval) \{     
        case 's' :return new Date(Date.parse(dtTmp) + (1000 \* Number));    
        case 'n' :return new Date(Date.parse(dtTmp) + (60000 \* Number));    
        case 'h' :return new Date(Date.parse(dtTmp) + (3600000 \* Number));    
        case 'd' :return new Date(Date.parse(dtTmp) + (86400000 \* Number));    
        case 'w' :return new Date(Date.parse(dtTmp) + ((86400000 \* 7) \* Number));    
        case 'q' :return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number\*3, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());    
        case 'm' :return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());    
        case 'y' :return new Date((dtTmp.getFullYear() + Number), dtTmp.getMonth(), dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());    
    \}    
\}    
    
//+---------------------------------------------------    
//| 比较日期差 dtEnd 格式为日期型或者有效日期格式字符串    
//+---------------------------------------------------    
Date.prototype.DateDiff = function(strInterval, dtEnd) \{     
    var dtStart = this;    
    if (typeof dtEnd == 'string' )//如果是字符串转换为日期型    
    \{     
        dtEnd = StringToDate(dtEnd);    
    \}    
    switch (strInterval) \{     
        case 's' :return parseInt((dtEnd - dtStart) / 1000);    
        case 'n' :return parseInt((dtEnd - dtStart) / 60000);    
        case 'h' :return parseInt((dtEnd - dtStart) / 3600000);    
        case 'd' :return parseInt((dtEnd - dtStart) / 86400000);    
        case 'w' :return parseInt((dtEnd - dtStart) / (86400000 \* 7));    
        case 'm' :return (dtEnd.getMonth()+1)+((dtEnd.getFullYear()-dtStart.getFullYear())\*12) - (dtStart.getMonth()+1);    
        case 'y' :return dtEnd.getFullYear() - dtStart.getFullYear();    
    \}    
\}    
    
//+---------------------------------------------------    
//| 日期输出字符串，重载了系统的toString方法    
//+---------------------------------------------------    
Date.prototype.toString = function(showWeek)    
\{     
    var myDate= this;    
    var str = myDate.toLocaleDateString();    
    if (showWeek)    
    \{     
        var Week = \['日','一','二','三','四','五','六'\];    
        str += ' 星期' + Week\[myDate.getDay()\];    
    \}    
    return str;    
\}    
    
//+---------------------------------------------------    
//| 日期合法性验证    
//| 格式为：YYYY-MM-DD或YYYY/MM/DD    
//+---------------------------------------------------    
function IsValidDate(DateStr)     
\{     
    var sDate=DateStr.replace(/(^\\s+|\\s+$)/g,''); //去两边空格;     
    if(sDate=='') return true;     
    //如果格式满足YYYY-(/)MM-(/)DD或YYYY-(/)M-(/)DD或YYYY-(/)M-(/)D或YYYY-(/)MM-(/)D就替换为''     
    //数据库中，合法日期可以是:YYYY-MM/DD(2003-3/21),数据库会自动转换为YYYY-MM-DD格式     
    var s = sDate.replace(/\[\\d\]\{ 4,4 \}\[\\-/\]\{ 1 \}\[\\d\]\{ 1,2 \}\[\\-/\]\{ 1 \}\[\\d\]\{ 1,2 \}/g,'');     
    if (s=='') //说明格式满足YYYY-MM-DD或YYYY-M-DD或YYYY-M-D或YYYY-MM-D     
    \{     
        var t=new Date(sDate.replace(/\\-/g,'/'));     
        var ar = sDate.split(/\[-/:\]/);     
        if(ar\[0\] != t.getYear() || ar\[1\] != t.getMonth()+1 || ar\[2\] != t.getDate())     
        \{     
            //alert('错误的日期格式！格式为：YYYY-MM-DD或YYYY/MM/DD。注意闰年。');     
            return false;     
        \}     
    \}     
    else     
    \{     
        //alert('错误的日期格式！格式为：YYYY-MM-DD或YYYY/MM/DD。注意闰年。');     
        return false;     
    \}     
    return true;     
\}     
    
//+---------------------------------------------------    
//| 日期时间检查    
//| 格式为：YYYY-MM-DD HH:MM:SS    
//+---------------------------------------------------    
function CheckDateTime(str)    
\{     
    var reg = /^(\\d+)-(\\d\{ 1,2 \})-(\\d\{ 1,2 \}) (\\d\{ 1,2 \}):(\\d\{ 1,2 \}):(\\d\{ 1,2 \})$/;     
    var r = str.match(reg);     
    if(r==null)return false;     
    r\[2\]=r\[2\]-1;     
    var d= new Date(r\[1\],r\[2\],r\[3\],r\[4\],r\[5\],r\[6\]);     
    if(d.getFullYear()!=r\[1\])return false;     
    if(d.getMonth()!=r\[2\])return false;     
    if(d.getDate()!=r\[3\])return false;     
    if(d.getHours()!=r\[4\])return false;     
    if(d.getMinutes()!=r\[5\])return false;     
    if(d.getSeconds()!=r\[6\])return false;     
    return true;     
\}     
    
//+---------------------------------------------------    
//| 把日期分割成数组    
//+---------------------------------------------------    
Date.prototype.toArray = function()    
\{     
    var myDate = this;    
    var myArray = Array();    
    myArray\[0\] = myDate.getFullYear();    
    myArray\[1\] = myDate.getMonth();    
    myArray\[2\] = myDate.getDate();    
    myArray\[3\] = myDate.getHours();    
    myArray\[4\] = myDate.getMinutes();    
    myArray\[5\] = myDate.getSeconds();    
    return myArray;    
\}    
    
//+---------------------------------------------------    
//| 取得日期数据信息    
//| 参数 interval 表示数据类型    
//| y 年 m月 d日 w星期 ww周 h时 n分 s秒    
//+---------------------------------------------------    
Date.prototype.DatePart = function(interval)    
\{     
    var myDate = this;    
    var partStr='';    
    var Week = \['日','一','二','三','四','五','六'\];    
    switch (interval)    
    \{     
        case 'y' :partStr = myDate.getFullYear();break;    
        case 'm' :partStr = myDate.getMonth()+1;break;    
        case 'd' :partStr = myDate.getDate();break;    
        case 'w' :partStr = Week\[myDate.getDay()\];break;    
        case 'ww' :partStr = myDate.WeekNumOfYear();break;    
        case 'h' :partStr = myDate.getHours();break;    
        case 'n' :partStr = myDate.getMinutes();break;    
        case 's' :partStr = myDate.getSeconds();break;    
    \}    
    return partStr;    
\}    
    
//+---------------------------------------------------    
//| 取得当前日期所在月的最大天数    
//+---------------------------------------------------    
Date.prototype.MaxDayOfDate = function()    
\{     
    var myDate = this;    
    var ary = myDate.toArray();    
    var date1 = (new Date(ary\[0\],ary\[1\]+1,1));    
    var date2 = date1.dateAdd(1,'m',1);    
    var result = dateDiff(date1.Format('yyyy-MM-dd'),date2.Format('yyyy-MM-dd'));    
    return result;    
\}    
    
//+---------------------------------------------------    
//| 取得当前日期所在周是一年中的第几周    
//+---------------------------------------------------    
Date.prototype.WeekNumOfYear = function()    
\{     
    var myDate = this;    
    var ary = myDate.toArray();    
    var year = ary\[0\];    
    var month = ary\[1\]+1;    
    var day = ary\[2\];    
    document.write('< script language=VBScript\\> \\n');    
    document.write('myDate = Datue(''+month+'-'+day+'-'+year+'') \\n');    
    document.write('result = DatePart('ww', myDate) \\n');    
    document.write(' \\n');    
    return result;    
\}    
    
//+---------------------------------------------------    
//| 字符串转成日期类型     
//| 格式 MM/dd/YYYY MM-dd-YYYY YYYY/MM/dd YYYY-MM-dd    
//+---------------------------------------------------    
function StringToDate(DateStr)    
\{     
    
    var converted = Date.parse(DateStr);    
    var myDate = new Date(converted);    
    if (isNaN(myDate))    
    \{     
        //var delimCahar = DateStr.indexOf('/')!=-1?'/':'-';    
        var arys= DateStr.split('-');    
        myDate = new Date(arys\[0\],--arys\[1\],arys\[2\]);    
    \}    
    return myDate;    
\}

若要显示:当前日期加时间(如:2009-06-12 12:00)

function CurentTime()  
    \{   
        var now = new Date();  
         
        var year = now.getFullYear();       //年  
        var month = now.getMonth() + 1;     //月  
        var day = now.getDate();            //日  
         
        var hh = now.getHours();            //时  
        var mm = now.getMinutes();          //分  
         
        var clock = year + "-";  
         
        if(month < 10)  
            clock += "0";  
         
        clock += month + "-";  
         
        if(day < 10)  
            clock += "0";  
             
        clock += day + " ";  
         
        if(hh < 10)  
            clock += "0";  
             
        clock += hh + ":";  
        if (mm < 10) clock += '0';   
        clock += mm;   
        return(clock);   
    \}

[Js]: http://www.cnblogs.com/carekee/articles/1678041.html
[Link 1]: http://www.cnblogs.com/carekee/admin/file::;