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显示定时的警告框

<html>
<head>
<script type="text/javascript">
function timedMsg()
{
var t=setTimeout("alert(‘5 秒!‘)",1000)
}
</script>
</head>

<body>
<form>
<input type="button" value="http://www.mamicode.com/显示定时的警告框" onClick = "timedMsg()">
</form>
<p>请点击上面的按钮。警告框会在 1 秒后显示。</p>
</body>

</html>

显示定时的警告框