请问这个验证码程序要怎么验证
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这样对吗???????
Function codepass()
Dim CodeStr
CodeStr = Trim(request("CodeStr"))
If CStr(Session("CheckCode")) = CStr(CodeStr) And CodeStr <> "" Then
codepass = True
'Session("CheckCode")=empty
Else
codepass = False
'Session("CheckCode")=empty
End If
End Function