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;

var d = new Date();

var today = d.getFullYear() + '/' + ('0'+(d.getMonth()+1)).slice(-2) + '/' + ('0'+d.getDate()).slice(-2);

使用纯Javascript，你可以创建自己的YYYYMMDD格式原型;

Date.prototype.yyyymmdd = function() {
  var yyyy = this.getFullYear().toString();
  var mm = (this.getMonth()+1).toString(); // getMonth() is zero-based
  var dd  = this.getDate().toString();
  return yyyy + "/" + (mm[1]?mm:"0"+mm[0]) + "/" + (dd[1]?dd:"0"+dd[0]); // padding
};

var date = new Date();
console.log( date.yyyymmdd() ); // Assuming you have an open console

//convert month to 2 digits<p>
var twoDigitMonth = ((fullDate.getMonth().length+1) === 1)? (fullDate.getMonth()+1) : '0' + (fullDate.getMonth()+1);

var currentDate =  fullDate.getFullYear()+ "/" + twoDigitMonth + "/" + fullDate.getDate();
console.log(currentDate);<br>
//2011/05/19

function returnCurrentDate() {
                var twoDigitMonth = ((fullDate.getMonth().toString().length) == 1) ? '0' + (fullDate.getMonth() + 1) : (fullDate.getMonth() + 1);
                var twoDigitDate = ((fullDate.getDate().toString().length) == 1) ? '0' + (fullDate.getDate()) : (fullDate.getDate());
                var currentDate = twoDigitDate + "/" + twoDigitMonth + "/" + fullDate.getFullYear();
                return currentDate;
            }

function createDate() {
            var date    = new Date(),
                yr      = date.getFullYear(),
                month   = date.getMonth()+1,
                day     = date.getDate(),
                todayDate = yr + '-' + month + '-' + day;
            console.log("Today date is :" + todayDate);