如何在完成子进程和线程后更新tinkter按钮，同时保持输出管道为文本框

import tkinter as tk
import threading
import subprocess

window = tk.Tk()
text_box = tk.Text(window)
text_box.pack()

def execute_command():
    # 启动子进程
    process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=True)
    
    # 读取子进程的输出并更新文本框
    while True:
        output = process.stdout.readline().decode('utf-8')
        if not output:
            break
        text_box.insert(tk.END, output)
        text_box.see(tk.END)  # 滚动到最新输出
        
    # 更新按钮状态为可点击
    button.config(state=tk.NORMAL)

def start_execution():
    # 更新按钮状态为不可点击
    button.config(state=tk.DISABLED)
    
    # 创建并启动子线程
    thread = threading.Thread(target=execute_command)
    thread.start()

button = tk.Button(window, text="执行命令", command=start_execution)
button.pack()

window.mainloop()