JS时钟--星期 年 月 日 时 分

 var clock = function(clockName){
     var mydate = new Date();
     var hours = mydate.getHours();
     var minutes = mydate.getMinutes();
     var seconds = mydate.getSeconds();
     var month = (mydate.getMonth()+1);
     var date = mydate.getDate();
     var day = new Date().getDay();
     var text = "";
     switch (day) {
         case 0:
             text = "周日";
             break;
         case 1:
             text = "周一";
             break;
         case 2:
             text = "周二";
             break;
         case 3:
             text = "周三";
             break;
         case 4:
             text = "周四";
             break;
         case 5:
             text = "周五";
             break;
         case 6:
             text = "周六";
             break;
   }
   if(month < 10){
       month = '0' + month;
   }
   if(date < 10){
       date = '0' + date;
   }
   if(hours < 10){
       hours = '0' + hours;
   }
   if(minutes < 10){
       minutes = '0' + minutes;
   }
   if(seconds < 10){
       seconds = '0' + seconds;
   }
   var str = text +" "+ month + "-" + date + " " + hours +":"+ minutes;
   $('#' + clockName).html("").text(str);
 }

使用：

clock('clock');
    setInterval(function(){
        clock('clock');
    },1000);