ЯсноПонятно24

import tkinter as tk

def on_click(event): text = entry.get() try: result = eval(text) entry.delete(0, tk.END) entry.insert(0, str(result)) except: entry.delete(0, tk.END) entry.insert(0, "Error")

root = tk.Tk() root.title("Calculator")

entry = tk.Entry(root, width=20, font=('Arial', 16)) entry.grid(row=0, column=0, columnspan=4)

buttons = [ '7', '8', '9', '/', '4', '5', '6', '*', '1', '2', '3', '-', 'C', '0', '=', '+' ]

row = 1 col = 0 for button_text in buttons: button = tk.Button(root, text=button_text, width=5, height=2) button.grid(row=row, column=col) col += 1 if col > 3: col = 0 row += 1

button.bind('<Button-1>', lambda e, text=button_text: entry.insert(tk.END, text))

root.bind('<Return>', on_click)

root.mainloop()