mon fichier

projet calculatrice.py

@@ -0,0 +1,62 @@
+import tkinter as tk
+
+class Expression:
+    def __init__(self, root, left, right):
+        self.root = root
+        self.left = left
+        self.right = right
+
+    def evaluate(self):
+        if self.root == '+':
+            return self.left.evaluate() + self.right.evaluate()
+        elif self.root == '*':
+            return self.left.evaluate() * self.right.evaluate()
+        else:
+            return int(self.root)
+
+    def __str__(self):
+        if self.root in ['+', '*']:
+            return f'({self.left} {self.root} {self.right})'
+        else:
+            return str(self.root)
+
+def npi2tree(npi_list):
+    stack = []
+    for item in npi_list:
+        if item in ['+', '*']:
+            right = stack.pop()
+            left = stack.pop()
+            stack.append(Expression(item, left, right))
+        else:
+            stack.append(Expression(item, None, None))
+    return stack[0]
+
+def evaluate_expression():
+    expression_text = entry.get()
+    if expression_text:
+        npi_list = expression_text.split()
+        try:
+            expression_tree = npi2tree(npi_list)
+            result.set(expression_tree.evaluate())
+        except Exception as e:
+            result.set("Erreur: " + str(e))
+    else:
+        result.set("Veuillez entrer une expression")
+
+root = tk.Tk()
+root.title("Mini Calculatrice")
+
+expression_label = tk.Label(root, text="Expression:")
+expression_label.pack()
+
+entry = tk.Entry(root)
+entry.pack()
+
+calculate_button = tk.Button(root, text="Calculer", command=evaluate_expression)
+calculate_button.pack()
+
+result = tk.StringVar()
+result_label = tk.Label(root, textvariable=result)
+result_label.pack()
+
+root.mainloop()