Question

在ASP后台管理中，验证码如何去掉

已经删除default.asp中的值：
<td width="29%">验证码：<br>
<input name=passcode type=text class="input_sr" id=passcode size="5" maxlength="4">
 <img src="code.asp">

文件b2b_cadmin.asp中，源码如下：
<!--#include file="conn.asp"-->
<!--#include file="b2bsys.asp"-->
<%dim admin,UserPassword,passcode
admin=FormatSQL(replace(trim(request.form("admin")),"'",""))
UserPassword=md5(FormatSQL(replace(trim(request.Form("UserPassword")),"'","")))
if admin="" or UserPassword="" then
response.Write "<script LANGUAGE='javascript'>alert('登录失败！请检查您的登录名和密码！');history.go(-1);</script>"
conn.Close
set conn=nothing
response.end
end if
if not isnumeric(request.form("passcode")) then
response.Write "<script LANGUAGE='javascript'>alert('登录失败！验证码必须是数字，请正确填写！');history.go(-1);</script>"
conn.Close
set conn=nothing
response.end
end if
passcode=Cint(request.form("passcode"))
set rs=server.CreateObject("adodb.recordset")
rs.Open "select * from [admin] where UserPassword='"&UserPassword&"' and admin='"&admin&"' " ,conn,1,1
if rs.bof and rs.eof then
response.write "<script LANGUAGE='javascript'>alert('你的用户名或者密码错误，登录失败！');history.go(-1);</script>"
rs.Close
set rs=nothing
conn.Close
set conn=nothing
response.end
else
if passcode<>Session("GetCode") then
response.Write "<script LANGUAGE='javascript'>alert('登录失败！验证码错误！');history.go(-1);</script>"
rs.Close
set rs=nothing
conn.Close
set conn=nothing
response.end
end if
if UserPassword=rs("UserPassword") and admin=rs("admin") then
session("admin")=trim(rs("admin"))
session("rank")=int(rs("rank"))
session.Timeout=300
response.Cookies("Buy2Buy")("admin")=trim(request.form("admin"))
rs.Close
set rs=nothing
conn.Close
set conn=nothing
response.Redirect "main.asp"
else
response.write "<script LANGUAGE='javascript'>alert('你的密码错误，登录失败！');history.go(-1);</script>"
rs.Close
set rs=nothing
conn.Close
set conn=nothing
end if
end if
%>

请问要去掉哪些项才可以正常使用？

Answer 1

去掉
<td width="29%">验证码：<br>
<input name=passcode type=text class="input_sr" id=passcode size="5" maxlength="4">
<img src="code.asp">
还有这几句:
passcode=Cint(request.form("passcode"))

else
if passcode<>Session("GetCode") then
response.Write "<script LANGUAGE='javascript'>alert('登录失败！验证码错误！');history.go(-1);</script>"

if not isnumeric(request.form("passcode")) then
response.Write "<script LANGUAGE='javascript'>alert('登录失败！验证码必须是数字，请正确填写！');history.go(-1);</script>"

Answer 2

删除
if not isnumeric(request.form("passcode")) then
response.Write "<script LANGUAGE='javascript'>alert('登录失败！验证码必须是数字，请正确填写！');history.go(-1);</script>"
conn.Close
set conn=nothing
response.end
end if

if passcode<>Session("GetCode") then
response.Write "<script LANGUAGE='javascript'>alert('登录失败！验证码错误！');history.go(-1);</script>"
rs.Close
set rs=nothing
conn.Close
set conn=nothing
response.end
end if

Answer 3

去掉
if not isnumeric(request.form("passcode")) then
response.Write "<script LANGUAGE='javascript'>alert('登录失败！验证码必须是数字，请正确填写！');history.go(-1);</script>"
conn.Close
set conn=nothing
response.end
end if
passcode=Cint(request.form("passcode"))

if passcode<>Session("GetCode") then
response.Write "<script LANGUAGE='javascript'>alert('登录失败！验证码错误！');history.go(-1);</script>"

Answer 4

if not isnumeric(request.form("passcode")) then
response.Write "<script LANGUAGE='javascript'>alert('登录失败！验证码必须是数字，请正确填写！');history.go(-1);</script>"
conn.Close
set conn=nothing
response.end
end if
passcode=Cint(request.form("passcode"))
set rs=server.CreateObject("adodb.recordset")
rs.Open "select * from [admin] where UserPassword='"&UserPassword&"' and admin='"&admin&"' " ,conn,1,1
if rs.bof and rs.eof then
response.write "<script LANGUAGE='javascript'>alert('你的用户名或者密码错误，登录失败！');history.go(-1);</script>"
rs.Close
set rs=nothing
conn.Close
set conn=nothing
response.end
else
if passcode<>Session("GetCode") then
response.Write "<script LANGUAGE='javascript'>alert('登录失败！验证码错误！');history.go(-1);</script>"
rs.Close
set rs=nothing
conn.Close
set conn=nothing
response.end
end if

改成

set rs=server.CreateObject("adodb.recordset")
rs.Open "select * from [admin] where UserPassword='"&UserPassword&"' and admin='"&admin&"' " ,conn,1,1

if rs.bof and rs.eof then
response.write "<script LANGUAGE='javascript'>alert('你的用户名或者密码错误，登录失败！');history.go(-1);</script>"
rs.Close
set rs=nothing
conn.Close
set conn=nothing
response.end

else
response.Write "<script LANGUAGE='javascript'>alert('登录成功');</script>"
rs.Close
set rs=nothing
conn.Close
set conn=nothing
response.end
end if

Answer 5

这都不会？