更好地理解tkinter中的combox -Python-如何在tkinter中获取所选值

import tkinter as tk
from tkinter import ttk

root = tk.Tk()

combox = ttk.Combobox(root)

combox['values'] = ['Option 1', 'Option 2', 'Option 3']

selected_value = combox.get()

import tkinter as tk
from tkinter import ttk

def get_selected_value():
    selected_value = combox.get()
    print(selected_value)

root = tk.Tk()

combox = ttk.Combobox(root)
combox['values'] = ['Option 1', 'Option 2', 'Option 3']
combox.pack()

button = tk.Button(root, text="Get Selected Value", command=get_selected_value)
button.pack()

root.mainloop()