python线程池无法正常执行 和queue.get冲突？

```python
import threading
from queue import Queue
import time
import concurrent.futures
 
def get_detail_html(detail_url_list, id):
    while True:
        url = detail_url_list.get()
        #设置退出机制
        if url is None:
            break
        time.sleep(2)
        print(f"thread {id}: get {url} detail finished")
    print(f"html thread {id} end")
 
def get_detail_url(queue):
    for i in range(10):
        time.sleep(1)
        queue.put(f"url: {i}")
        print(f"get detail url {i} end")
    #设置退出机制 不然线程内部queue读取循环无法结束 
    #写入数量>=读取线程数
    for i in range(10):
        queue.put(None)    
    print("url thread end")

 
if __name__ == "__main__":
    detail_url_queue = Queue(maxsize=1000)
    start_time = time.time()
    '''
    html_thread = []
    for i in range(3):
        thread2 = threading.Thread(target=get_detail_html, args=(detail_url_queue, i))
        html_thread.append(thread2)

    #启动所有queue的读取线程    
    for i in range(3):
        html_thread[i].start()
      
    '''
    # 修改重点！！！！！！！
    executor = concurrent.futures.ThreadPoolExecutor(max_workers=5)
    for i in range(5):
        future = executor.submit(get_detail_html, detail_url_queue,i)
   

   #启动queue的写入线程 
    thread = threading.Thread(target=get_detail_url, args=(detail_url_queue,))
    thread.start()



    #等待所有线程结束 
    thread.join()   
    executor.shutdown()
    '''
    for i in range(3):
        html_thread[i].join()
    ''' 

    print(f"last time: {time.time() - start_time} s")

问题已解决，确认Queue是线程安全的。

```python

   # 修改重点！！！！！！！
    executor = concurrent.futures.ThreadPoolExecutor(max_workers=5)
    for i in range(5):
        future = executor.submit(get_detail_html, detail_url_queue,i)