利用JS实现时间格式转化详解编程语言

 
 
Date.prototype.format = function(format){ 
   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; 
  } 
 
  
 
调用： 
 
var time=new Date(d.regday); 
 var nowtime=time.format("yyyy-MM-dd")