<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>无标题页</title>
<script language="javascript" type="text/javascript">
function But()
{
window.location.href="Default2.aspx?str="+111;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<input id="a" type="button" onclick="But()" style="width: 413px" />
</form>
</body>
</html>
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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>无标题页</title>
<script language="javascript" type="text/javascript">
function str()
{
var locationStr=document.location.search;
//substring 从所在字符串长度中的最后位置从前取三个
alert(locationStr.substring(locationStr.length,locationStr.length-3));
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input id="a" type="button" onclick="str()" style="width:20%;" />
</div>
</form>
</body>
</html>
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