vb中调用自定义函数
我在vb中用adodc连接ACCESS,下面这段函数是字符串匹配函数,语句和函数在ACCESS中测试没有问题,在程序中怎样作才能让这段函数起作用呢,哪位好心人帮帮忙给段代码,不管是修改语句、函数还是代码都行,最好是完整的代码我水平很烂的,只要回帖不胜感激!
执行语句:
SELECT * FROM CompareBase INNER JOIN Zd_WC2 ON AlikePercentEx(CompareBase.Xm_name,zd_WC2.WC_name)
函数:
Public Function AlikePercentEx(ByVal strTextSrc As String, _
ByVal strTextDest As String, _
Optional ByVal blnCaseSensitive As Boolean = False, _
Optional ByVal blnExactPositionMatch As Boolean = False) As ADODB.Recordset
Dim o_strTextSrc As String
Dim o_strTextDest As String
Dim o_strTextLonger As String
Dim o_strTextShorter As String
Dim o_strByteSrc As String
Dim o_strByteDest As String
Dim o_lngLength As Long
Dim o_lngItems As Long
Dim o_lngMatches As Long
Dim o_lngStart As Long
Dim con As ADODB.Connection
Dim rs As ADODB.Recordset
Dim strconnection As String
Dim V_Str As String
Set con = New ADODB.Connection
Set rs = New ADODB.Record
On Error GoTo AlikePercentEx
cn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\接口对应程序\Interface.mdb;Persist Security Info=False"
If Not blnCaseSensitive Then
o_strTextSrc = UCase(strTextSrc)
o_strTextDest = UCase(strTextDest)
Else
End If
If o_strTextSrc = o_strTextDest Then '如果一致
AlikePercentEx = 100#
Else
If Len(o_strTextSrc) = Len(o_strTextDest) Then
o_strTextLonger = o_strTextSrc
o_strTextShorter = o_strTextDest
ElseIf Len(o_strTextSrc) > Len(o_strTextDest) Then
o_strTextLonger = o_strTextSrc
o_strTextShorter = o_strTextDest
Else
o_strTextLonger = o_strTextDest
o_strTextShorter = o_strTextSrc
End If
o_lngLength = Len(o_strTextShorter)
o_lngStart = InStr(o_strTextLonger, Left(o_strTextShorter, 1))
If o_lngStart Then
o_lngMatches = 1
For o_lngItems = o_lngStart + 1 To Len(o_strTextLonger)
If blnExactPositionMatch Then '位置必须一致
o_strByteSrc = Mid(o_strTextLonger, o_lngItems, 1)
o_strByteDest = Mid(o_strTextShorter, o_lngItems - o_lngStart + 1, 1)
If o_strByteSrc = o_strByteDest Then
o_lngMatches = o_lngMatches + 1
Else
End If
Else '任意位置模糊匹配
End If
Next
AlikePercentEx = (o_lngMatches / o_lngLength) * 100 \ 1
Else
AlikePercentEx = 0#
End If
End If
End Function