一些有用的自定义函数（抄录）

'提取字符串中的数字
Function GetDigits(strText  As String )  As String
Dim strChar  As String , strMsg  As String
Dim i  As Long
strMsg =  ""
For i = 1  To Len(strText)
    strChar = Mid(strText, i, 1)
    If strChar  Like "#" Then strMsg = strMsg & strChar
Next
GetDigits = strMsg
End Function