代码1.html

<script>

function showTime() {

var date = new Date();

var Year=date.getFullYear();

var Month=date.getMonth()+1;

var Dates=date.getDate();

var week = date.getDay();

var Hour=date.getHours();

                     if(Hour<10){

                            Hour='0'+Hour;

                     }else{

                                   Hour=Hour;

                            }

var Minute=date.getMinutes();

                            if(Minute<10){

                                   Minute='0'+Minute;

                            }else{

                                   Minute=Minute;

                            }

var Second=date.getSeconds();

                            if(Second<10){

                                   Second='0'+Second;

                            }else{

                                   Second=Second;

                            }

var weeks = ["日","一","二","三","四","五","六"];

var getWeek = "星期" + weeks[week];

document.getElementById('datetime').innerHTML="现在是：" + Year +"年" + Month + "月" + Dates +"日"+" "+ getWeek+" "+ Hour+ ":"+ Minute + ":" + Second;

              setTimeout('showTime()',1000);

              }

              </script>

       <body onload="showTime()">

              <div id="datetime"></div>

       </body>