python中tkinter计算器

本文使用创作助手。

以下是一个用Python的Tkinter库编写的简单计算器的示例代码：

import tkinter as tkdef btn_click(btn_val):current_text = entry.get()new_text = current_text + btn_valentry.delete(0, tk.END)entry.insert(tk.END, new_text)def calculate():expression = entry.get()result = eval(expression)entry.delete(0, tk.END)entry.insert(tk.END, result)def clear():entry.delete(0, tk.END)# 创建窗口
window = tk.Tk()
window.title("Calculator")# 创建文本框
entry = tk.Entry(window, width=30)
entry.grid(row=0, column=0, columnspan=4)# 创建按钮
button_values = ["7", "8", "9", "/","4", "5", "6", "*","1", "2", "3", "-","0", ".", "=", "+"
]row_index = 1
col_index = 0for value in button_values:if value == "=":button = tk.Button(window, text=value, width=7, command=calculate)elif value == "C":button = tk.Button(window, text=value, width=7, command=clear)else:button = tk.Button(window, text=value, width=7, command=lambda val=value: btn_click(val))button.grid(row=row_index, column=col_index)col_index += 1if col_index > 3:col_index = 0row_index += 1# 运行窗口主循环
window.mainloop()

运行以上代码后，将会打开一个窗口，并且你可以点击窗口中的按钮来进行计算。文本框会显示你输入的表达式，并且在点击"="按钮后，会计算并显示结果。点击"C"按钮会清除文本框中的内容。