代码:
import tkinter as tk
class Calculator:
def __init__(self, master):
self.master = master
master.title("Calculator")
self.total = tk.StringVar()
self.entered_number = tk.StringVar()
self.entered_number.set('0')
self.total.set('0')
self.entry = tk.Entry(master, textvariable=self.entered_number)
self.entry.grid(row=0, column=0, columnspan=4, padx=10, pady=10, ipadx=10, ipady=10)
self.create_button("1", 1, 1)
self.create_button("2", 1, 2)
self.create_button("3", 1, 3)
self.create_button("4", 2, 1)
self.create_button("5", 2, 2)
self.create_button("6", 2, 3)
self.create_button("7", 3, 1)
self.create_button("8", 3, 2)
self.create_button("9", 3, 3)
se