如何将一个字符转换为日期类型？？？？？

Question

<Script Language="JavaScript">
var dateS = "2003-9-9 12:10:10".replace("-","/")
dateS = dateS.replace("-","/");
var dateStr = new Date(dateS)
alert(dateStr)
</Script>

Answer 1

var datestring = "November 1, 1997 10:15 AM";
Date.parse(datestring)

Answer 2

<Script Language="JavaScript">
var date = "2003-9-9 12:10:10";
date=date.replace("-","/");
date= date.replace("-","/");
number=Date.parse(date);
var dateStr = new Date(number);
alert(dateStr)
</Script>

Answer 3

var D = new Date("2003-9-9 12:10:10".replace(/-/g, "\/"));
var y = D.getFullYear();
var m = D.getMonth() + 1;
var d = D.getDate();alert(y +" 年 "+ m +" 月 "+ d +"日");