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asp form 表单验证函数

  • 时间:2021-05-24 11:56 编辑: 来源: 阅读:
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摘要:asp form 表单验证函数
'************************************* '检测是否只包含英文和数字 '************************************* Function IsvalidValue(ArrayN, Str) IsvalidValue = False Dim GName For Each GName in ArrayN If Str = GName Then IsvalidValue = True Exit For End If Next End Function '************************************* '检测是否有效的数字 '************************************* Function IsInteger(Para) IsInteger = False If Not (IsNull(Para) Or Trim(Para) = "" Or Not IsNumeric(Para)) Then IsInteger = True End If End Function '************************************* '用户名检测 '************************************* Function IsValidUserName(byVal UserName) Dim i, c Dim VUserName IsValidUserName = True For i = 1 To Len(UserName) c = LCase(Mid(UserName, i, 1)) If InStr("$!<>?#^%@~`&*();:+='""     ", c) > 0 Then IsValidUserName = False Exit Function End If Next For Each VUserName in Register_UserName If UserName = VUserName Then IsValidUserName = False Exit For End If Next End Function '************************************* '检测是否有效的E-mail地址 '************************************* Function IsValidEmail(Email) Dim names, Name, i, c IsValidEmail = True Names = Split(email, "@") If UBound(names) <> 1 Then IsValidEmail = False Exit Function End If For Each Name IN names If Len(Name) <= 0 Then IsValidEmail = False Exit Function End If For i = 1 To Len(Name) c = LCase(Mid(Name, i, 1)) If InStr("abcdefghijklmnopqrstuvwxyz_-.", c) <= 0 And Not IsNumeric(c) Then IsValidEmail = False Exit Function End If Next If Left(Name, 1) = "." Or Right(Name, 1) = "." Then IsValidEmail = False Exit Function End If Next If InStr(names(1), ".") <= 0 Then IsValidEmail = False Exit Function End If i = Len(names(1)) - InStrRev(names(1), ".") If i <> 2 And i <> 3 Then IsValidEmail = False Exit Function End If If InStr(email, "..") > 0 Then IsValidEmail = False End If End Function
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