Python 编程基础

import tkinter as tk from tkinter import messagebox class SimpleApp: def __init__(self, root): self.root = root self.root.title("我的第一个 GUI 应用") self.root.geometry("300x200") # 创建标签 self.label = tk.Label(root, text="欢迎使用 Tkinter!") self.label.pack(pady=10) # 创建输入框 self.entry = tk.Entry(root, width=30) self.entry.pack(pady=5) # 创建按钮 self.button = tk.Button(root, text="点击我", command=self.show_message) self.button.pack(pady=5) # 创建退出按钮 self.quit_btn = tk.Button(root, text="退出", command=root.quit) self.quit_btn.pack(pady=5) def show_message(self): name = self.entry.get() or "访客" messagebox.showinfo("问候", f"Hello, {name}!") # 创建主窗口 root = tk.Tk() app = SimpleApp(root) root.mainloop()