📄 test2.aspx
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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="test2.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<% @ Import Namespace="System.Data.SqlClient" %>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>在线考试-填空题</title>
<script language="javascript" type="text/javascript">
<!--
// -->
</script>
</head>
<body style="text-align: left">
<script language="javascript">
if (navigator.appName.indexOf("Internet Explorer") != -1)
document.onmousedown = noSourceExplorer;
document.onkeydown = noSourceExplorer;
function noSourceExplorer()
{
if (event.button == 2 | event.button == 3 ||(event.keyCode==116))
{
alert("考试中禁止刷新!");
}
}
//if (navigator.appName.indexOf("Internet Explorer") != -1)
//document.onkeydown = noSourceExplorer;
//function document.onkeydown()
//{
//if (event.keyCode==116)
//
//{
// return false;
// event.returnValue=false;
// alert("考试中禁止刷新!");
//}}
</script>
<span id="clock">00:00:05:00</span>
<input type=button value="start countdown!" onclick="onTimer()" id="Button1">
<input type=button value="stop countdown!"onclick="window.clearTimeout(timer);">
<script language="Javascript">
var elapse = 100;
var start = document.all("clock").innerText;
var finish = "00:00:00:00";
var timer = null;
function onTimer(i)
{
if (start == finish)
{
window.clearTimeout(timer);
alert("考试时间到，考试结束!");
return;
}
var hms = new String(start).split(":");
var ms = new Number(hms[3]);
var s = new Number(hms[2]);
var m = new Number(hms[1]);
var h = new Number(hms[0]);
ms -= 10;
if (ms < 0)
{
ms = 90;
s -= 1;
if (s < 0)
{
s = 59;
m -= 1;
}
if (m < 0)
{
m = 59;
h -= 1;
}
}
var ms = ms < 10 ? ("0" + ms) : ms;
var ss = s < 10 ? ("0" + s) : s;
var sm = m < 10 ? ("0" + m) : m;
var sh = h < 10 ? ("0" + h) : h;
start = sh + ":" + sm + ":" + ss + ":" + ms;
document.all("clock").innerText = start;
timer = window.setTimeout("onTimer()",elapse);
}
</script>
<form id="form1" action="result.aspx" method="post" runat="server">
<asp:Panel ID="Panel1" runat="server" Height="459px" Width="819px">
</asp:Panel>
</form>
</body>
</html>
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