如何获取函数的返回值，并使用tkinter和python在用户界面中的相应字段中输入该输出

def get_output():
    output = "Hello, World!"
    return output

import tkinter as tk

def get_output():
    output = "Hello, World!"
    return output

def show_output():
    output_value = get_output()
    output_entry.delete(0, tk.END)
    output_entry.insert(tk.END, output_value)

root = tk.Tk()

output_entry = tk.Entry(root)
output_entry.pack()

show_output_button = tk.Button(root, text="Show Output", command=show_output)
show_output_button.pack()

root.mainloop()