供你参考——getDay()会告诉你星期几…即:如果今天是星期四，它将返回数字4(是一周的第4天)。

使用getDate()来获取一个月中的某一天。

下面是我的例子……(也是一个字符串填充函数，在单个时间元素上给出前导0。(例如:10:4:34 => 10:04:35)

function strpad00(s)
{
    s = s + '';
    if (s.length === 1) s = '0'+s;
    return s;
}

var currentdate = new Date();
var datetime = currentdate.getDate() 
    + "/" + strpad00((currentdate.getMonth()+1)) 
    + "/" + currentdate.getFullYear() 
    + " @ " 
    + currentdate.getHours() + ":" 
    + strpad00(currentdate.getMinutes()) + ":" 
    + strpad00(currentdate.getSeconds());

示例输出:31/12/2013 @ 10:07:49如果使用getDay()，输出将是4/12/2013 @ 10:07:49

这是我只用jQuery得出的结果。只是把碎片拼在一起的问题。

        //Gather date information from local system
        var ThisMonth = new Date().getMonth() + 1;
        var ThisDay = new Date().getDate();
        var ThisYear = new Date().getFullYear();
        var ThisDate = ThisMonth.toString() + "/" + ThisDay.toString() + "/" + ThisYear.toString();

        //Gather time information from local system
        var ThisHour = new Date().getHours();
        var ThisMinute = new Date().getMinutes();
        var ThisTime = ThisHour.toString() + ":" + ThisMinute.toString();

        //Concatenate date and time for date-time stamp
        var ThisDateTime = ThisDate  + " " + ThisTime;

你可以使用下面的代码:

var nowDate     = new Date();
var nowDay      = ((nowDate.getDate().toString().length) == 1) ? '0'+(nowDate.getDate()) : (nowDate.getDate());
var nowMonth    = ((nowDate.getMonth().toString().length) == 1) ? '0'+(nowDate.getMonth()+1) : (nowDate.getMonth()+1);
var nowYear     = nowDate.getFullYear();
var formatDate  = nowDay + "." + nowMonth + "." + nowYear;

你可以在这里找到一个工作演示

因为问题被标记为jQuery:

如果你也在使用jQuery UI，你可以使用$.datepicker.formatDate():

$.datepicker.formatDate('yy/mm/dd', new Date());

请看这个演示。

var d = new Date();
var month = d.getMonth() + 1;
var day = d.getDate();
var year = d.getYear();
var today = (day<10?'0':'')+ day + '/' +(month<10?'0':'')+ month + '/' + year;
alert(today);

console.log($.datepicker.formatDate('yy/mm/dd', new Date()));