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JAVASCRIPT:时间格式化
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/** | |
* 对Date的扩展,将 Date 转化为指定格式的String | |
* 月(M)、日(d)、12小时(h)、24小时(H)、分(m)、秒(s)、周(E)、季度(q) 可以用 1-2 个占位符 | |
* 年(y)可以用 1-4 个占位符,毫秒(S)只能用 1 个占位符(是 1-3 位的数字) | |
* eg: | |
* (new Date()).pattern("yyyy-MM-dd hh:mm:ss.S") ==> 2007-07-02 08:09:04.423 | |
* (new Date()).pattern("yyyy-MM-dd E HH:mm:ss") ==> 2007-03-10 二 20:09:04 | |
* (new Date()).pattern("yyyy-MM-dd EE hh:mm:ss") ==> 2007-03-10 周二 08:09:04 | |
* (new Date()).pattern("yyyy-MM-dd EEE hh:mm:ss") ==> 2007-03-10 星期二 08:09:04 | |
* (new Date()).pattern("yyyy-M-d h:m:s.S") ==> 2007-7-2 8:9:4.18 | |
*/ | |
Date.prototype.format = function(fmt) { | |
var o = { | |
"M+": this.getMonth() + 1, | |
//月份 | |
"d+": this.getDate(), | |
//日 | |
"h+": this.getHours() % 12 == 0 ? 12 : this.getHours() % 12, | |
//小时 | |
"H+": this.getHours(), | |
//小时 | |
"m+": this.getMinutes(), | |
//分 | |
"s+": this.getSeconds(), | |
//秒 | |
"q+": Math.floor((this.getMonth() + 3) / 3), | |
//季度 | |
"S": this.getMilliseconds() //毫秒 | |
}; | |
var week = { | |
"0": "\u65e5", | |
"1": "\u4e00", | |
"2": "\u4e8c", | |
"3": "\u4e09", | |
"4": "\u56db", | |
"5": "\u4e94", | |
"6": "\u516d" | |
}; | |
if (/(y+)/.test(fmt)) { | |
fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length)); | |
} | |
if (/(E+)/.test(fmt)) { | |
fmt = fmt.replace(RegExp.$1, ((RegExp.$1.length > 1) ? (RegExp.$1.length > 2 ? "\u661f\u671f": "\u5468") : "") + week[this.getDay() + ""]); | |
} | |
for (var k in o) { | |
if (new RegExp("(" + k + ")").test(fmt)) { | |
fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length))); | |
} | |
} | |
return fmt; | |
} | |
//test | |
//alert((new Date()).format("yyyy-MM-dd EEE hh:mm:ss")); |
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