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[Ruey]

vb範例
Private Function NumToText(dblVal As Double) As String
Static Ones(0 To 9) As String
Static Teens(0 To 9) As String
Static Tens(0 To 9) As String
Static Thousands(0 To 4) As String
Static bInit As Boolean
Dim i As Integer, bAllZeros As Boolean, bShowThousands As Boolean
Dim strVal As String, strBuff As String, strTemp As String
Dim nCol As Integer, nChar As Integer

'Only handles positive values
Debug.Assert dblVal >= 0

If bInit = False Then
'Initialize array
bInit = True
Ones(0) = "zero"
Ones(1) = "one"
Ones(2) = "two"
Ones(3) = "three"
Ones(4) = "four"
Ones(5) = "five"
Ones(6) = "six"
Ones(7) = "seven"
Ones( = "eight"
Ones(9) = "nine"
Teens(0) = "ten"
Teens(1) = "eleven"
Teens(2) = "twelve"
Teens(3) = "thirteen"
Teens(4) = "fourteen"
Teens(5) = "fifteen"
Teens(6) = "sixteen"
Teens(7) = "seventeen"
Teens( = "eighteen"
Teens(9) = "nineteen"
Tens(0) = ""
Tens(1) = "ten"
Tens(2) = "twenty"
Tens(3) = "thirty"
Tens(4) = "forty"
Tens(5) = "fifty"
Tens(6) = "sixty"
Tens(7) = "seventy"
Tens( = "eighty"
Tens(9) = "ninety"
Thousands(0) = ""
Thousands(1) = "thousand" 'US numbering
Thousands(2) = "million"
Thousands(3) = "billion"
Thousands(4) = "trillion"
End If
'Trap errors
On Error GoTo NumToTextError
'Get fractional part
strBuff = "and " & Format((dblVal - Int(dblVal)) * 100, "00") & "/100"
'Convert rest to string and process each digit
strVal = CStr(Int(dblVal))
'Non-zero digit not yet encountered
bAllZeros = True
'Iterate through string
For i = Len(strVal) To 1 Step -1
'Get value of this digit
nChar = Val(Mid$(strVal, i, 1))
'Get column position
nCol = (Len(strVal) - i) + 1
'Action depends on 1's, 10's or 100's column
Select Case (nCol Mod 3)
Case 1 '1's position
bShowThousands = True
If i = 1 Then
'First digit in number (last in loop)
strTemp = Ones(nChar) & " "
ElseIf Mid$(strVal, i - 1, 1) = "1" Then
'This digit is part of "teen" number
strTemp = Teens(nChar) & " "
i = i - 1 'Skip tens position
ElseIf nChar > 0 Then
'Any non-zero digit
strTemp = Ones(nChar) & " "
Else
'This digit is zero. If digit in tens and hundreds column
'are also zero, don't show "thousands"
bShowThousands = False
'Test for non-zero digit in this grouping
If Mid$(strVal, i - 1, 1) <> "0" Then
bShowThousands = True
ElseIf i > 2 Then
If Mid$(strVal, i - 2, 1) <> "0" Then
bShowThousands = True
End If
End If
strTemp = ""
End If
'Show "thousands" if non-zero in grouping
If bShowThousands Then
If nCol > 1 Then
strTemp = strTemp & Thousands(nCol \ 3)
If bAllZeros Then
strTemp = strTemp & " "
Else
strTemp = strTemp & ", "
End If
End If
'Indicate non-zero digit encountered
bAllZeros = False
End If
strBuff = strTemp & strBuff
Case 2 '10's position
If nChar > 0 Then
If Mid$(strVal, i + 1, 1) <> "0" Then
strBuff = Tens(nChar) & "-" & strBuff
Else
strBuff = Tens(nChar) & " " & strBuff
End If
End If
Case 0 '100's position
If nChar > 0 Then
strBuff = Ones(nChar) & " hundred " & strBuff
End If
End Select
Next i
'Convert first letter to upper case
strBuff = UCase$(Left$(strBuff, 1)) & Mid$(strBuff, 2)
EndNumToText:
'Return result
NumToText = strBuff
Exit Function
NumToTextError:
strBuff = "#Error#"
Resume EndNumToText
End Function