<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Js定時(shí)事件</title>
<script src="js/jquery-1.9.1.js" type="text/javascript"></script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input type="button" value="點(diǎn)下我" id="btn" onclick="show()" />
</div>
<script type="text/javascript">
/*
timeId=window.setTimeout("method()",1000); window.clearTimeout(timeId);定時(shí)執(zhí)行
timeId=window.setInterval("method()",1000); window.clearInterval(timeId);循環(huán)執(zhí)行
*/
var nn = 30;
var tipId;
function show() {
tipId = window.setInterval("start()", 1000); //每隔1秒調(diào)用一次start()方法
}
function start() {
if (nn > 0) {
var vv = "點(diǎn)下我(" + nn + ")";
$("#btn").attr("disabled", "disabled"); //使按鈕不能被點(diǎn)擊
$("#btn").attr("value", vv); //更改按鈕上的文字
nn--;
} else {
nn = 30;
$("#btn").removeAttr("disabled"); //使按鈕能夠被點(diǎn)擊
$("#btn").attr("value", "點(diǎn)下我"); //更改按鈕上的文字
window.clearInterval(tipId); //清除循環(huán)事件
}
}
</script>
</form>
</body>
</html>
