javascript Ñé֤ʱ¼ä¸ñʽ

1. ¶Ìʱ¼ä£¬ÐÎÈç (13:04:06)
function isTime(str)
{
var a = str.match(/^(\d{1,2})(:)?(\d{1,2})\2(\d{1,2})$/);
if (a == null) {alert('ÊäÈëµÄ²ÎÊý²»ÊÇʱ¼ä¸ñʽ'); return false;}
if (a[1]>24 || a[3]>60 || a[4]>60)
{
alert("ʱ¼ä¸ñʽ²»¶Ô");
return false
}
return true;
}
2. ¶ÌÈÕÆÚ£¬ÐÎÈç (2003-12-05)
function strDateTime(str)
{
var r = str.match(/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/);
if(r==null)return false;
var d= new Date(r[1], r[3]-1, r[4]);
return (d.getFullYear()==r[1]&&(d.getMonth()+1)==r[3]&&d.getDate()==r[4]);
}
3. ³¤Ê±¼ä£¬ÐÎÈç (2003-12-05 13:04:06)
function strDateTime(str)
{
var reg = /^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/;
var r = str.match(reg);
if(r==null)return false;
var d= new Date(r[1], r[3]-1,r[4],r[5],r[6],r[7]);
return (d.getFullYear()==r[1]&&(d.getMonth()+1)==r[3]&&d.getDate()==r[4]&&d.getHours()==r[5]&&d.getMinutes()==r[6]&&d.getSeconds()==r[7]);
}