ASP Chinese digit Verification Code

CopyCode The Code is as follows: <form method = "Post" name = myform>
Last name: <input type = "text" name = "name" value = "> <br>
Student ID: <input type = "text" name = "num" value = "> <br>
... : <Input type = "text" name = "AAA" value = ""> <br>
... : <Input type = "text" name = "BBB" value = ""> <br>
Verification Code:
<Input type = "text" size = "5" name = "C" AutoComplete = "off" style = "ime-mode: Disabled;" value = "">
<Input type = "Submit" value = "Submit">
</Form>

ASP code:Copy codeThe Code is as follows: <%
C = request. Form ("C ")
'If you can enter a lower-case number, comment out the following three rows
For II = 0 to 9
C = Replace (C, CSTR (II ),"")
Next
C = Replace (C, "0", "0 ")
C = Replace (C, "1", "1 ")
C = Replace (C, "2", "2 ")
C = Replace (C, "3", "3 ")
C = Replace (C, "4", "4 ")
C = Replace (C, "5", "5 ")
C = Replace (C, "Six", "6 ")
C = Replace (C, "7", "7 ")
C = Replace (C, "8", "8 ")
C = Replace (C, "9", "9 ")
If CSTR (c) <> CSTR (Session ("validatecode") then
Response. Write ("Incorrect verification code ")
Response. End
End if
%>