Laura
6 days ago
4 changed files with 160 additions and 59 deletions
@ -1,39 +1,55 @@ |
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from tkinter import * |
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from modules.calculette import Calculette |
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fenetre = Tk() |
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label = Label(fenetre, text="Calculatrice") |
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label.grid(row=0, column=0) |
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# Creating the buttons |
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bouton1 = Button(fenetre, text="1") |
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bouton1.grid(row=1, column=0) |
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bouton2 = Button(fenetre, text="2") |
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bouton2.grid(row=1, column=1) |
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bouton3 = Button(fenetre, text="3") |
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bouton3.grid(row=1, column=2) |
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bouton4 = Button(fenetre, text="4") |
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bouton4.grid(row=2, column=0) |
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def ajouter_au_calcul(symbol): |
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'''Ajoute un symbole à la saisie''' |
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current_text = calc.get() |
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calc.set(current_text + symbol) |
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bouton5 = Button(fenetre, text="5") |
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bouton5.grid(row=2, column=1) |
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def calculer_expression(): |
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'''Calcule l'expression saisie''' |
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expression = calc.get() |
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resultat = calculatrice.calculer(expression) |
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result_label.config(text="Résultat: " + str(resultat)) |
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bouton6 = Button(fenetre, text="6") |
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bouton6.grid(row=2, column=2) |
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def effacer(): |
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'''Efface la saisie''' |
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calc.set("") |
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bouton7 = Button(fenetre, text="7") |
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bouton7.grid(row=3, column=0) |
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bouton8 = Button(fenetre, text="8") |
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bouton8.grid(row=3, column=1) |
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bouton9 = Button(fenetre, text="9") |
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bouton9.grid(row=3, column=2) |
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bouton0 = Button(fenetre, text="0") |
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bouton0.grid(row=4, column=1) |
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fenetre = Tk() |
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fenetre.geometry("350x300") |
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fenetre.title("Calculatrice") |
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calculatrice = Calculette() |
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calcLabel = Label(fenetre, text="Saisir le calcul") |
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calcLabel.pack() |
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calc = StringVar() |
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calc.set("") |
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saisie = Entry(fenetre, textvariable=calc, width=40) |
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saisie.pack() |
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buttons_frame = Frame(fenetre) |
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buttons_frame.pack() |
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#matrices des boutons |
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buttons = [ |
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('7', 1, 0), ('8', 1, 1), ('9', 1, 2), ('/', 1, 3), |
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('4', 2, 0), ('5', 2, 1), ('6', 2, 2), ('*', 2, 3), |
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('1', 3, 0), ('2', 3, 1), ('3', 3, 2), ('-', 3, 3), |
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('0', 4, 0), ('.', 4, 1), ('+', 4, 2), ('=', 4, 3), |
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] |
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for (text, row, col) in buttons: |
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if text == '=': |
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Button(buttons_frame, text=text, width=10, height=3, command=calculer_expression).grid(row=row, column=col) |
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else: |
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Button(buttons_frame, text=text, width=10, height=3, command=lambda t=text: ajouter_au_calcul(t)).grid(row=row, column=col) |
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Button(fenetre, text="EFFACER", width=40, command=effacer).pack() |
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result_label = Label(fenetre, text="") |
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result_label.pack() |
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fenetre.mainloop() |
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@ -0,0 +1,76 @@ |
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from File import File_chaine as File |
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from Pile import Pile_chaine as Pile |
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class Expression: |
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"""Classe représentant une expression arithmétique""" |
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def __init__(self, valeur, gauche=None, droite=None): |
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self.valeur = valeur |
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self.gauche = gauche |
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self.droite = droite |
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def evalue(self): |
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"""Méthode permettant d'évaluer l'expression""" |
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if type(self.valeur) == int: |
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return self.valeur |
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if self.valeur == '+': |
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return self.gauche.evalue() + self.droite.evalue() |
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elif self.valeur == '*': |
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return self.gauche.evalue() * self.droite.evalue() |
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elif self.valeur == '/': |
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if self.droite.valeur == 0: |
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raise ValueError ("division par 0 impossible !! ") |
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return self.gauche.evalue() / self.droite.evalue() |
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elif self.valeur == '-': |
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return self.gauche.evalue() - self.droite.evalue() |
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def __str__(self): |
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"""Méthode permettant d'afficher l'expression""" |
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if type(self.valeur) == int: |
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return str(self.valeur) |
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if self.valeur == '+': |
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return "("+ str (self.gauche) + "+" + str (self.droite) + ")" |
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if self.valeur == '*': |
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return "("+ str (self.gauche) + "*" + str (self.droite) + ")" |
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if self.valeur == '/': |
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return "("+ str (self.gauche) + "/" + str (self.droite) + ")" |
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if self.valeur == '-': |
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return "("+ str (self.gauche) + "-" + str (self.droite) + ")" |
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def __repr__(self): |
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"""Méthode permettant d'afficher l'expression""" |
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return str(self) |
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if __name__ =="__main__": |
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e = Expression('*',Expression(6, None, None),Expression('+',Expression(4, None, None),Expression(3, None, None))) |
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def npi2tree(lst): |
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"""fonction npi2tree prenant en paramètre une liste correspondant l’expression en notation |
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polonaise inversée et renvoyant l’arbre (de type Expression) correspondant""" |
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exp = [] |
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for ele in lst : |
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if ele in ["+","-","/","*"]: |
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ex = Expression(ele, exp.pop(), exp.pop()) |
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exp.append(ex) |
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else: |
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exp.append(int(ele)) |
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return exp.pop() |
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class Calculette: |
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"""Classe représentant une calculette""" |
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def __init__(self): |
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pass |
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def calculer(self, expression): |
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"""Méthode permettant de calculer une expression""" |
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try: |
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return eval(expression) |
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except Exception as e: |
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return str(e) |
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if __name__ == "__main__": |
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npi2tree(["3","4","+","6","*"]) |
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