Dim Premier_nombre_present As Boolean Dim Deuxieme_nombre_present As Boolean Dim Operande As String Dim premier_chiffre As Integer Dim deuxieme_chiffre As Integer Private Sub btplus_Click() Operande = "+" premier_chiffre = Val(result.Text) result.Text = "" Premier_nombre_present = True result.SetFocus End Sub Private Sub btmoins_Click() Operande = "-" premier_chiffre = Val(result.Text) result.Text = "" Premier_nombre_present = True result.SetFocus End Sub Private Sub btegal_Click() If Deuxieme_nombre_present Then Select Case Operande Case "+": result.Text = CStr(premier_chiffre + deuxieme_chiffre) Case "-": result.Text = CStr(premier_chiffre - deuxieme_chiffre) ' ... End Select End If End Sub Private Sub Form_Load() Premier_nombre_present = False Deuxieme_nombre_present = False Operande = "" End Sub Private Sub result_KeyUp(KeyCode As Integer, Shift As Integer) If Premier_nombre_present Then deuxieme_chiffre = Val(result.Text) Deuxieme_nombre_present = True Else premier_chiffre = Val(result.Text) End If End Sub
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