While...Wend Statement

When a program encounters a While statement, it tests the condition. If the condition is False, the program continues directly following the Wend statement. If the condition is True, the loop is executed until the program finds Wend and then jumps back to the While statement. If the condition is still True, the loop is executed again.

Unlike the Do...Loop statement, you cannot cancel a While...Wend loop with Exit. Never exit a While...Wend loop with GoTo, since this can cause a run-time error.

O uso de Do...Loop é máis flexíbel que While...Wend.

Sintaxe:

While Condición [Instrución] Wend

Exemplo:

  Sub ExemploWhileWend
  Dim sTexto As String
  Dim iExec As Integer
      sTexto ="Isto é un texto curto"
      iExec = 1
      while iRun < Len(sTexto)
          if Mid(sTexto,iExec,1 )<> " " then Mid( sTexto ,iExec, 1, Chr( 1 + Asc( Mid(sTexto,iExec,1 )) )
          iRun = iRun + 1
      Wend
      MsgBox sTexto,0,"Texto codificado"
  End Sub