JavaScript格式化日期输出

 JavaScript Code 

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<script>     window.onload = function(){           Date.prototype.Format = function (fmt) {                             var o = {                 ,                      //月份                  "d+": this.getDate(),                           //日                  "H+": this.getHours(),                          //小时                  "m+": this.getMinutes(),                        //分                  "s+": this.getSeconds(),                        //秒  ),    //季度                  "S": this.getMilliseconds()                     //毫秒          };         if (/(y+)/.test(fmt))              fmt = fmt.replace(RegExp.$1, ( - RegExp.$1.length));         for (var k in o)         if (new RegExp("(" + k + ")").test(fmt))              fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == ) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));         return fmt;         }              var currenttime1 = new Date().Format("yyyy-MM-ddTHH:mm:ss");           var pselstart = document.getElementById("starttime");           pselstart.value = currenttime1;         var currenttime2 = new Date().Format("yyyy-MM-ddTHH:mm:ss");           var pselend = document.getElementById("endtime");           pselend.value = currenttime2;        } </script>