📄 default2.aspx
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<%@ Page Language="VB" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script language="vb" Runat="Server">
Sub Page_Load(Sender as object,e as eventargs)
dim VNum as string=Session("VNum")
Session.Abandon()
ViewState("VNum")=VNum
End Sub
'下面的事件代码是用来测试验证码,可以根据需要更改
Sub btnSubmit_click(sender as object,e as eventargs)
'判断输入的验证码与所给是否相同
If txtValidateCode.text=Cstr(ViewState("VNum")) then
lblShow.text="<font color='red'>提示:验证通过</font>"
Else
lblShow.text="所填写的验证码与所给的不符"
End If
End Sub
</script>
</head>
<body>
<form id="Form1" runat="server">
<div align="center">
<table width="750">
<!--DWLayoutTable-->
<tr>
<td width="256" height="46"> </td>
<td width="9"> </td>
<td width="88"> </td>
<td width="87"> </td>
<td width="100"> </td>
<td width="68"> </td>
<td width="97"> </td>
</tr>
<tr>
<td height="21"></td>
<td></td>
<td colspan="3" valign="top"><asp:label ID="lblShow" runat="server"></asp:label></td>
<td> </td>
<td> </td>
</tr>
<tr>
<td height="14"></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td height="21"> </td>
<td colspan="2" valign="middle">验证码:</td>
<td valign="top"><asp:Image id="Image1" runat="server" ImageUrl="default.aspx" /></td>
<td>
<asp:Image ID="Image2" runat="server" ImageUrl="gif.aspx" /></td>
<td> </td>
<td> </td>
</tr>
<tr>
<td height="20"> </td>
<td colspan="2" valign="top">输入验证码:</td>
<td valign="top"><asp:textbox ID="txtValidateCode" runat="server" TextMode="SingleLine" /></td>
<td colspan="2" valign="middle"><font color="#FF0000" size="2">*注意:区分大小写</font></td>
<td> </td>
</tr>
<tr>
<td height="25"> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td height="19"> </td>
<td> </td>
<td> </td>
<td valign="top"><asp:button ID="btnSubmit" runat="server" Text="比较" onclick="btnSubmit_click" /></td>
<td> </td>
<td> </td>
<td> </td>
</tr>
</table>
</div>
</form>
</body>
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