在Python中从另一个线程终止主线程

import threading
import time

# 标志位，用于控制主线程是否终止
terminate_flag = False

def worker():
    while not terminate_flag:
        print("Worker thread is running...")
        time.sleep(1)

# 创建并启动工作线程
thread = threading.Thread(target=worker)
thread.start()

# 主线程运行一段时间后终止工作线程
time.sleep(5)
terminate_flag = True
thread.join()

print("Main thread is terminated.")