我几乎让CAPTCHA系统在这个特定网站上运行。我使用了http://www.tipstricks.org中的验证码表单。一切似乎都在起作用，但是当我填写联系表格时，价值不会通过电子邮件提交。我只是从缺少的所有值中获得联系。我不确定如何传递表单中的值，以便它包含在电子邮件中。以下是此特定asp页面上的代码：
<form name="form1" id="form1" method="post" action="send_email.asp" value="<%
If Session("form1") <> "" Then Response.Write(Session("form1"))%>" />
<table border="0" align="center" cellpadding="2" cellspacing="0">
<tr>
<td>Contact Name</td>
<td width="20" align="center">:</td>
<td><input name="name" type="text" id="name" size="30"></td>
</tr>
<tr>
<td>E-mail Address</td>
<td align="center">:</td>
<td><input name="email" type="text" id="email" size="30"></td>
</tr>
<tr>
<td>Comments</td>
<td align="center">:</td>
<td><input name="comments" type="text" id="comments" size="30"></td>
</tr>
<tr>
<td> </td>
<td align="center"> </td>
</tr>
</table>
<div style="text-align: center; margin-top: 20px;">
<%
if Request.ServerVariables("REQUEST_METHOD") = "POST" and IsEmpty(Request.Form("btnRetry")) then
Dim lblResult, lblColor
if IsEmpty(Session("ASPCAPTCHA")) or Trim(Session("ASPCAPTCHA")) = "" then
lblResult = "This test has expired."
lblColor = "red"
else
Dim TestValue : TestValue = Trim(Request.Form("txtCaptcha"))
'//Uppercase fix for turkish charset//
TestValue = Replace(TestValue, "i", "I", 1, -1, 1)
TestValue = Replace(TestValue, "İ", "I", 1, -1, 1)
TestValue = Replace(TestValue, "ı", "I", 1, -1, 1)
'////////////////////
TestValue = UCase(TestValue)
if StrComp(TestValue, Trim(Session("ASPCAPTCHA")), 1) = 0 then
lblResult = "CAPTCHA PASSED"
lblColor = "green"
Session("form1") = Request.Form("form1")
response.redirect "send_email.asp"
else
lblResult = "CAPTCHA FAILED"
lblColor = "red"
end if
'//IMPORTANT: You must remove session value for security after the CAPTCHA test//
Session("ASPCAPTCHA") = vbNullString
Session.Contents.Remove("ASPCAPTCHA")
'////////////////////
end if
%>
<p><span style="color: <%=lblColor%>; font-weight: bold;"><%=lblResult%></span></p>
<input type="submit" name="btnRetry" id="btnRetry" value="Take another test" />
<%else%>
<img src="captcha.asp" id="imgCaptcha" /> <a href="javascript:void(0);" onclick="RefreshImage('imgCaptcha');">Get a new challenge</a><br />
Write the characters in the image above<br />
<input type="text" name="txtCaptcha" id="txtCaptcha" value="" /><br />
<input type="submit" name="btnSubmit" id="btnSubmit" value="Submit" />
<%end if%>
</form>
非常感谢任何帮助。