从tkinter中的另一个窗口获取输入

import tkinter as tk

def open_input_window():
    input_window = tk.Toplevel(root)
    input_window.title("输入窗口")
    
    input_label = tk.Label(input_window, text="请输入内容:")
    input_label.pack()
    
    input_entry = tk.Entry(input_window)
    input_entry.pack()
    
    confirm_button = tk.Button(input_window, text="确认", command=lambda: get_input(input_entry.get()))
    confirm_button.pack()

def get_input(input_value):
    print("获取到的输入值为:", input_value)

root = tk.Tk()
root.title("主窗口")

open_button = tk.Button(root, text="打开输入窗口", command=open_input_window)
open_button.pack()

root.mainloop()