<head runat="server">
<title></title>
<script type="text/javascript" src="https://www.linuxidc.com/js/jquery-1.3.2.js"></script>
<script type="text/javascript">
var timeout;
var count = 10; // 倒数十下
$(function() {
timeout = setTimeout(BtnCount, 1000); // 1s执行一次BtnCount
});
BtnCount = function() {
// 启动按钮
if (count == 0) {
$('#btnSubmit').attr("disabled", "");
$('#btnSubmit').val("确定");
clearTimeout(timeout); // 可取消由 setTimeout() 方法设置的 timeout
}
else {
count--;
$('#btnSubmit').val("确(" + count.toString() + ")定");
setTimeout(BtnCount, 1000);
}
};
</script>
</head>
<body>
<form runat="server">
<div>
<asp:Button runat="server" Text="确定" Enabled="false"
/>
</div>
</form>
</body>
setTimeout预设只执行一次，但我们可以用递归，是它自己启动自己。