域名查询系统用到的类

        Call ConnDB()
        For vLoopI = 0 To UBound(vDomainArr)
            vDomainsName = LCase(vDomainArr(vLoopI))
            If Instr(vDomainsName, ".") > 0 Then
                vDomainMainBody = Split(vDomainsName, ".")(0)
                Conn.Execute("INSERT INTO [CNDomainList](DomainName, Body, Length, ComposeType, TLD) VALUES('" & vDomainsName & "', '" & vDomainMainBody & "', " & Len(vDomainMainBody) & ", " & GetDomainComposeType(vDomainMainBody) & ", " & GetDomainLTD(vDomainsName) & ")") 
            End If
        Next
        Call DisconnDB()
        Call CompactDataBase(vDatabasePath, False)
    End Function

    Public Function ClearUpDatabase()
        Call ConnDB()
        Conn.Execute("DELETE * FROM [CNDomainList]")
        Call DisconnDB()
        Call CompactDataBase(vDatabasePath, False)
    End Function

    Private Function GetDomainComposeType(DomainName)
        If Cmd.IsAlpha(DomainName) Then
            GetDomainComposeType=1
        ElseIf Cmd.IsDigit(DomainName) Then
            GetDomainComposeType=2
        ElseIf Cmd.IsAlphaDigit(DomainName) Then
            GetDomainComposeType=3
        Else
            GetDomainComposeType=4
        End If
    End Function

    Private Function GetDomainLTD(DomainName)
        If UBound(Split(DomainName, ".")) > 1 Then