程式語言 - Python - Tkinter - ComboBox

參考資訊：
https://tkdocs.com/shipman/
https://www.pythontutorial.net/tkinter/tkinter-window/

main.py

import tkinter as tk
from tkinter import ttk

root = tk.Tk()
root.title('main')
root.geometry('300x300')

combo = ttk.Combobox(state = 'readonly', values = ['menu-1', 'menu-2', 'menu-3'])
combo.pack()
combo.current(0)

root.mainloop()

執行

$ python3 main.py