JavaScript中获取时间的函数集分享

  $(function(){  var mydate = new Date();  var t=mydate.toLocaleString();  $("#time").text(t);  $("#time").load("Untitled-1.html");   });

  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

  Date.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  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

  //---------------------------------------------------  // 判断闰年  //---------------------------------------------------  Date.prototype.isLeapYear = function()  {  return (0==this.getYear()%4&&((this.getYear()0!=0)||(this.getYear()@0==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 = DateValue(''+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;  }