如何在python的第二个窗口中从combobox中获取数据？

from tkinter import Tk, StringVar
from tkinter.ttk import Combobox

window2 = Tk()
window2.title("第二个窗口")

data = ["选项1", "选项2", "选项3"]
selected_option = StringVar()
combobox = Combobox(window2, textvariable=selected_option, values=data)
combobox.pack()

def get_selected_data():
    selected_data = selected_option.get()
    print("选中的数据是：", selected_data)

button = Button(window2, text="获取数据", command=get_selected_data)
button.pack()

from tkinter import Tk, StringVar
from tkinter.ttk import Combobox

def get_selected_data():
    selected_data = selected_option.get()
    print("选中的数据是：", selected_data)

window2 = Tk()
window2.title("第二个窗口")

data = ["选项1", "选项2", "选项3"]
selected_option = StringVar()
combobox = Combobox(window2, textvariable=selected_option, values=data)
combobox.pack()

button = Button(window2, text="获取数据", command=get_selected_data)
button.pack()

window2.mainloop()