<div id="clock" class="light"> 
 <div class="display"> 
  <div class="date"></div> 
  <div class="digits"></div> 
 </div> 
</div> 

$(function(){ 
 var clock = $('#clock'); 
 //定义数字数组0-9 
 var digit_to_name = ['zero','one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine']; 
 //定义星期 
 var weekday = ['周日','周一','周二','周三','周四','周五','周六']; 
 var digits = {}; 
 //定义时分秒位置 
 var positions = [ 
  'h1', 'h2', ':', 'm1', 'm2', ':', 's1', 's2' 
 ]; 
}); 

var digit_holder = clock.find('.digits'); 
 $.each(positions, function(){ 
  if(this == ':'){ 
   digit_holder.append('<div class="dots">'); 
  } 
  else{ 
   var pos = $('<div>'); 
   for(var i=1; i<8; i++){ 
    pos.append('<span class="d' + i + '">'); 
   } 
   digits[this] = pos; 
   digit_holder.append(pos); 
  } 
 }); 

$(function(){ 
 ... 
 (function update_time(){ 
  //调用moment.js来格式化时间 
  var now = moment().format("HHmmss"); 
  digits.h1.attr('class', digit_to_name[now[0]]); 
  digits.h2.attr('class', digit_to_name[now[1]]); 
  digits.m1.attr('class', digit_to_name[now[2]]); 
  digits.m2.attr('class', digit_to_name[now[3]]); 
  digits.s1.attr('class', digit_to_name[now[4]]); 
  digits.s2.attr('class', digit_to_name[now[5]]); 
  var date = moment().format("YYYY年MM月DD日"); 
  var week = weekday[moment().format('d')]; 
  $(".date").html(date + ' ' + week); 
  // 每秒钟运行一次 
  setTimeout(update_time, 1000); 
 })(); 
});