javascript
javascript定时器及Date对象
功能：顯示時鐘
<html>
<head>
<title>test</title>
</head>
<body οnlοad="startTime();">
<div id="txt"></div>
</body>
</html>
<script type="text/javascript">
??? function startTime() {
??????? var today = new Date()
??????? var y = today.getFullYear();
??????? var M = today.getMonth() + 1
??????? var d = today.getDate();
??????? var h = today.getHours()
??????? var m = today.getMinutes()
??????? var s = today.getSeconds()
??????? // add a zero in front of numbers<10
??????? m = checkTime(m)
??????? s = checkTime(s)
??????? document.getElementById('txt').innerHTML = y + "-" + M + "-" + d + " " + h + ":" + m + ":" + s;
??????? t = setTimeout('startTime()', 500)??? //定時器，500ms執行遞歸一次
??? }
??? function checkTime(i) {
??????? if (i < 10)
??????? { i = "0" + i }
??????? return i
??? }
</script>
轉載于:https://www.cnblogs.com/81/archive/2013/03/26/2983327.html
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