function makePassword(byVal maxLen)

Dim strNewPass
Dim whatsNext, upper, lower, intCounter
Randomize

For intCounter = 1 To maxLen
whatsNext = Int((1 - 0 + 1) * Rnd + 0)
If whatsNext = 0 Then
'character
upper = 90
lower = 65
Else
upper = 57
lower = 48
End If
strNewPass = strNewPass & Chr(Int((upper - lower + 1) * Rnd + lower))
Next
makePassword = strNewPass

end function
%>

（出处：不详 ）