Python 3 tkinter登录程序

import tkinter as tk

def login():
    username = entry_username.get()
    password = entry_password.get()
    
    # 在这里编写验证用户名和密码的逻辑

    # 示例：判断用户名和密码是否为空
    if username and password:
        # 验证成功，执行登录操作
        label_result.config(text="登录成功！")
    else:
        # 验证失败，提示错误信息
        label_result.config(text="用户名或密码不能为空！")

# 创建窗口
window = tk.Tk()
window.title("登录程序")

# 创建用户名和密码的标签和输入框
label_username = tk.Label(window, text="用户名：")
label_username.pack()
entry_username = tk.Entry(window)
entry_username.pack()

label_password = tk.Label(window, text="密码：")
label_password.pack()
entry_password = tk.Entry(window, show="*")
entry_password.pack()

# 创建登录按钮
button_login = tk.Button(window, text="登录", command=login)
button_login.pack()

# 显示登录结果的标签
label_result = tk.Label(window, text="")
label_result.pack()

# 运行窗口主循环
window.mainloop()