[前端]JS时钟实例

学习了JS日期类和时钟实例.

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <script type="text/javascript"> function startTime () { var today=new Date(); var y=today.getFullYear(); var mon=today.getMonth()+1; mon=changNum(mon); var d=today.getDay(); d=changNum(d); var h=today.getHours(); var m=today.getMinutes(); m=changNum(m); var s=today.getSeconds(); s=changNum(s); document.getElementById("timeid").innerHTML=y+"年"+mon+"月"+d+"日"+h+":"+m+":"+s; t=setTimeout(function(){ startTime(); },500); } function changNum(i){ //月、日、秒如果小于10数字前加0 if(i<10){ return "0"+i; } return i; } </script>
</head>
<body onload="startTime()">

<h1 id="timeid"></h1>

</body>
</html>

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