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);