Mid Function

Returns the specified portion of a string expression (Mid function), or replaces the portion of a string expression with another string (Mid subroutine).

Syntaks:


Mid(string As String, Start As Long [, Length As Long]) As String
Mid([ByRef] string As String, Start As Long, [Length As Long], Text As String)

Returværdi:

String (kun ved funktion)

Parametre:

string: Any string expression that you want to extract (Mid function). Any text variable name that you want to modify (Mid subroutine).

Start: Numerisk udtryk, der angiver den tegnposition i strengen, hvor den mængde strenge, du vil udskifte eller returnere, begynder. The minimum allowed value is 1. Den maksimalt tilladte værdi er 2.147.483.648.

Length: Numerisk udtryk, der returnerer det antal tegn, du vil erstatte eller returnere. Den maksimalt tilladte værdi er 2.147.483.648.

Hvis længdeparameteren i funktionen Mid funktion er udeladt, vil alle tegn i strengudtrykket fra begyndelsen til slutningen af strengen returneres.

If the Length parameter in the Mid subroutine is less than the length of the text that you want to replace, the text is reduced to the specified length.

Text: The string to replace the string expression (Mid subroutine).

Fejlkoder:

5 Ugyldigt Procedurekald

Eksempel:


Sub ExampleMid_Function_and_Statement
  text = "This is the original Text"
func1:
  MsgBox Mid(text, 13, 8)   ' returns the word "original"
  MsgBox text               ' text is not modified
stmt1:
  Mid(text, 13, 8, "new")
  MsgBox text               ' returns "This is the new Text"
func2:
  MsgBox Mid(start:=10, string:="The quick brown fox ..") ' shows " brown fox .."
stmt2:
  Mid text, 9, 12, "a new Phrase"
  MsgBox text               ' returns "This is a new Phrase"
End Sub