用JS做的时钟

 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">

 <head>

     <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">

     <title>计时事件表</title>

     <script>

         function startTime()

         {

             var today=new Date()

             var h=today.getHours()

             var m=today.getMinutes()

             var s=today.getSeconds()  

             m = checkTime(m)

             s = checkTime(s)

             document.getElementById('txt').innerHTML=h+":"+m+":"+s

             t = setTimeout('startTime()', 500)

         }

         function checkTime(i)

         {

             //小于10的前面补0

             if(i<10)

                 {i="0"+i}

                 return i

         }

     </script>

 </head>

 <body onload="startTime()">

     <div id="txt"></div>

 </body>

 </html>
相关文章
