js中格式化时间

来源：互联网发布：icinga windows 编辑：程序博客网时间：2024/04/28 07:54

第一种:

/**  * 时间对象的格式化;  */  Date.prototype.format = function(format) {      /*      * eg:format="YYYY-MM-dd hh:mm:ss";      */      var o = {          "M+" :this.getMonth() + 1, // month          "d+" :this.getDate(), // day          "h+" :this.getHours(), // hour          "m+" :this.getMinutes(), // minute          "s+" :this.getSeconds(), // second          "q+" :Math.floor((this.getMonth() + 3) / 3), // quarter          "S" :this.getMilliseconds()      // millisecond      }        if (/(y+)/.test(format)) {          format = format.replace(RegExp.$1, (this.getFullYear() + "")                  .substr(4 - RegExp.$1.length));      }        for ( var k in o) {          if (new RegExp("(" + k + ")").test(format)) {              format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k]                      : ("00" + o[k]).substr(("" + o[k]).length));          }      }      return format;  }

var   now = new Date().format("yyyy-MM-dd hh:mm:ss");

第二种：

Date.protoType.format = function(mask) {      var d = this;        var zeroize = function (value, length) {            if (!length) length = 2;            value = String(value);            for (var i = 0, zeros = ''; i < (length - value.length); i++) {                zeros += '0';            }            return zeros + value;        };        return mask.replace(/"[^"]*"|'[^']*'|\b(?:d{1,4}|m{1,4}|yy(?:yy)?|([hHMstT])\1?|[lLZ])\b/g, function($0) {            switch($0) {                case 'd':   return d.getDate();                case 'dd':  return zeroize(d.getDate());                case 'ddd': return ['Sun','Mon','Tue','Wed','Thr','Fri','Sat'][d.getDay()];                case 'dddd':return ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'][d.getDay()];                case 'M':   return d.getMonth() + 1;                case 'MM':  return zeroize(d.getMonth() + 1);                case 'MMM': return ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'][d.getMonth()];                case 'MMMM':return ['January','February','March','April','May','June','July','August','September','October','November','December'][d.getMonth()];                case 'yy':  return String(d.getFullYear()).substr(2);                case 'yyyy':return d.getFullYear();                case 'h':   return d.getHours() % 12 || 12;                case 'hh':  return zeroize(d.getHours() % 12 || 12);                case 'H':   return d.getHours();                case 'HH':  return zeroize(d.getHours());                case 'm':   return d.getMinutes();                case 'mm':  return zeroize(d.getMinutes());                case 's':   return d.getSeconds();                case 'ss':  return zeroize(d.getSeconds());                case 'l':   return zeroize(d.getMilliseconds(), 3);                case 'L':   var m = d.getMilliseconds();                        if (m > 99) m = Math.round(m / 10);                        return zeroize(m);                case 'tt':  return d.getHours() < 12 ? 'am' : 'pm';                case 'TT':  return d.getHours() < 12 ? 'AM' : 'PM';                case 'Z':   return d.toUTCString().match(/[A-Z]+$/);                // Return quoted strings with the surrounding quotes removed                default:    return $0.substr(1, $0.length - 2);            }        });  };

转载自：http://baalwolf.iteye.com/blog/1124649