js 时间操作和随机数操作

  function Data()
        {
            var date = new Date();
            var year = date.getFullYear();
            var month = date.getMonth() + ;
            var strDate = date.getDate();
            if (month >=  && month <= ) {
                month = "" + month;
            }
            if (strDate >=  && strDate <= ) {
                strDate = "" + strDate;
            }
            var newRandom = "";
            for(var i=;i<;i++)
            {
                newRandom += Math.floor(Math.random()* + ).toString();
            }
            var currentdate =  year + month + strDate + newRandom;
            return currentdate;
        }