（VB）一个从字符串取出子字符串的函数
从 字符串 inString中 取出 在 字符串 sSpecString与nSpecString之间的子串 Function getSpecString(inString As String, sSpecString As String, nSpecString As String) As String Dim subString As String Dim sIndex As Long Dim nIndex As Long subStri
从字符串inString中取出在字符串sSpecString与nSpecString之间的子串
Function getSpecString(inString As String, sSpecString As String, nSpecString As String) As StringDim subString As StringDim sIndex As LongDim nIndex As LongsubString = ""
'当nSpecString &&"" ,即有指定第二个字符串的值If nSpecString && "" Then??? For sIndex = 1 To Len(inString)??????? If Mid(inString, sIndex, Len(sSpecString)) = sSpecString Then??????????? For nIndex = sIndex To Len(inString)??????????????? If Mid(inString, nIndex, Len(nSpecString)) = nSpecString Then??????????????????? subString = Mid(inString, sIndex + Len(sSpecString), nIndex - sIndex - Len(sSpecString))??????????????????? Exit For??????????????? End If??????????? Next nIndex??????? End If??? Next sIndexElse
'如果nSpecString="",即取出sSpecString字符串以后所有的字符??? For sIndex = 1 To Len(inString)??????? If Mid(inString, sIndex, Len(sSpecString)) = sSpecString Then??????????? subString = Mid(inString, sIndex + Len(sSpecString), Len(inString) - sIndex - Len(sSpecString))??????????? Exit For??????? End If??? Next sIndexEnd If
'判断取出的字符串是否有空行，如果有就删除If InStr(subString, Chr(13) & Chr(10)) = 1 Then??? subString = Right(subString, Len(subString) - 2)End IfgetSpecString = subString
End Function
例如：inString = "Hello China!" ,sSpecString="He",nSpecString="a!"
Dim resultString As String
resultString = getSpecString(inString, sSpecString, nSpecString)
结果：resultString = "llo Chin"?
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