数字转大写英文

'此过程为西人所写，谨推荐给大家.
 
 
 '****************' Main Function *'****************
Function SayUSD(ByVal MyNumber)
    Dim Dollars, Cents, Temp
    Dim DecimalPlace, Count
    ReDim Place(9) As String
    Application.Volatile True
    Place(2) = " Thousand "
    Place(3) = " Million "
    Place(4) = " Billion "
    Place(5) = " Trillion "     ' String representation of amount
    MyNumber = Trim(Str(MyNumber))     ' Position of decimal place 0 if none
    DecimalPlace = InStr(MyNumber, ".")
    'Convert cents and set MyNumber to dollar amount
    If DecimalPlace > 0 Then
        Cents = GetTens(Left(Mid(MyNumber, DecimalPlace + 1) & "00", 2))
        MyNumber = Trim(Left(MyNumber, DecimalPlace - 1))
        End If
    Count = 1
    Do While MyNumber <> ""
       Temp = GetHundreds(Right(MyNumber, 3))
       If Temp <> "" Then Dollars = Temp & Place(Count) & Dollars
          If Len(MyNumber) > 3 Then
             MyNumber = Left(MyNumber, Len(MyNumber) - 3)
             Else
            MyNumber = ""
            End If
            Count = Count + 1
            Loop
    Select Case Dollars
        Case ""
            Dollars = "No Dollars"
        Case "One"
            Dollars = "One Dollar"
        Case Else
            Dollars = Dollars & " Dollars"
    End Select
    Select Case Cents
        Case ""
            Cents = ""
        Case "One"
            Cents = " and One Cent"
        Case Else
            Cents = " and " & Cents & " Cents"
    End Select
    SayUSD = Dollars & Cents
    End Function
'*******************************************
' Converts a number from 100-999 into text *
'*******************************************
Function GetHundreds(ByVal MyNumber)
    Dim Result As String
    If Val(MyNumber) = 0 Then Exit Function
    MyNumber = Right("000" & MyNumber, 3)     'Convert the hundreds place
    If Mid(MyNumber, 1, 1) <> "0" Then
        Result = GetDigit(Mid(MyNumber, 1, 1)) & " Hundred "
        End If
    'Convert the tens and ones place
    If Mid(MyNumber, 2, 1) <> "0" Then
        Result = Result & GetTens(Mid(MyNumber, 2))
        Else
        Result = Result & GetDigit(Mid(MyNumber, 3))
        End If
    GetHundreds = Result
    End Function
'*********************************************
' Converts a number from 10 to 99 into text. *
'*********************************************
Function GetTens(TensText)
    Dim Result As String
    Result = ""           'null out the temporary function value
    If Val(Left(TensText, 1)) = 1 Then   ' If value between 10-19
        Select Case Val(TensText)
        Case 10: Result = "Ten"
            Case 11: Result = "Eleven"
            Case 12: Result = "Twelve"
            Case 13: Result = "Thirteen"
            Case 14: Result = "Fourteen"
            Case 15: Result = "Fifteen"
            Case 16: Result = "Sixteen"
            Case 17: Result = "Seventeen"
            Case 18: Result = "Eighteen"
            Case 19: Result = "Nineteen"
            Case Else
            End Select
      Else                                 ' If value between 20-99
        Select Case Val(Left(TensText, 1))
            Case 2: Result = "Twenty "
            Case 3: Result = "Thirty "
            Case 4: Result = "Forty "
            Case 5: Result = "Fifty "
            Case 6: Result = "Sixty "
            Case 7: Result = "Seventy "
            Case 8: Result = "Eighty "
            Case 9: Result = "Ninety "
            Case Else
        End Select
         Result = Result & GetDigit _
            (Right(TensText, 1))  'Retrieve ones place
            End If
      GetTens = Result
      End Function
'*******************************************
' Converts a number from 1 to 9 into text. *
'*******************************************
Function GetDigit(Digit)
    Select Case Val(Digit)
        Case 1: GetDigit = "One"
        Case 2: GetDigit = "Two"
        Case 3: GetDigit = "Three"
        Case 4: GetDigit = "Four"
        Case 5: GetDigit = "Five"
        Case 6: GetDigit = "Six"
        Case 7: GetDigit = "Seven"
        Case 8: GetDigit = "Eight"
        Case 9: GetDigit = "Nine"
        Case Else: GetDigit = ""
    End Select
End Function