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95 lines
2.0 KiB
95 lines
2.0 KiB
import tkinter as tk
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from Pile import Pile_chaine
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class Expression:
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def __init__(self, valeur, gauche, droit):
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self.valeur = valeur
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self.gauche = gauche
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self.droit = droit
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def evalue(self):
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if self.valeur == '+':
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self.valeur = self.gauche.evalue() + self.droit.evalue()
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if self.valeur == '*':
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self.valeur = self.gauche.evalue() * self.droit.evalue()
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return self.valeur
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def __str__(self):
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if self.gauche is None and self.droit is None:
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return str(self.valeur)
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expr = ""
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if self.gauche is not None:
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if self.gauche.valeur in ['+', '*']:
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expr += "(" + str(self.gauche) + ")"
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else:
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expr += str(self.gauche)
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expr += " " + str(self.valeur) + " "
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if self.droit is not None:
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if self.droit.valeur in ['+', '*']:
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expr += "(" + str(self.droit) + ")"
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else:
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expr += str(self.droit)
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return expr
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def npi2tree(ch):
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ch = ch.split()
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Expr = Pile_chaine()
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for elmt in ch:
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if elmt == '*' or elmt == '+':
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exp = Expression(elmt, Expr.depiler(), Expr.depiler())
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Expr.empiler(exp)
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else:
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Expr.empiler(Expression(int(elmt), None, None))
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return Expr.sommet()
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def calculer():
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expression = entry.get()
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try:
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resultat = npi2tree(expression).evalue()
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result_label.config(text="Résultat: " + str(resultat))
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except Exception as erreur:
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result_label.config(text="Erreur: " + str(erreur))
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root = tk.Tk()
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root.title("Calculatrice rudimentaire")
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message_label = tk.Label(root, text="Le calcul doit être écrit en notation polonaise inversée")
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message_label.pack()
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entry = tk.Entry(root, width=30)
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entry.pack(pady=10)
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evaluate_button = tk.Button(root, text="Calculer", command=calculer)
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evaluate_button.pack()
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result_label = tk.Label(root, text="")
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result_label.pack(pady=10)
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root.mainloop()
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