var A= "2015-06-05 16:21:40";這個A只是這個格式,還可能是"2015-11-21 12:23:23"
例如我想取出:B="2015-06"; C="06-05";
<!DOCTYPE html>
<html>
<body>
<script>
Date.prototype.Format = function (fmt) { //author: meizz
var o = {
"M+": this.getMonth() + 1, //月份
"d+": this.getDate(), //日
"h+": this.getHours(), //小時
"m+": this.getMinutes(), //分
"s+": this.getSeconds(), //秒
"q+": Math.floor((this.getMonth() + 3) / 3), //季度
"S": this.getMilliseconds() //毫秒
};
if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
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;
}
var B= new Date('2012-01-01 16:53:24').Format("MM-dd");
var C= new Date('2012-01-01 16:53:24').Format("yyyy-MM");
alert(B+','+C);
</script>
</body>
</html>