截止到目前为止，我运行就不知道在干嘛，等半天没啥响应

相关代码：

#用于request发送请求
import requests
#建立队列
from multiprocessing import Queue
#用正则表达式来抽取网页数据
import re
#采用多线程爬取
import threading

class Crawl_page(threading.Thread):
    #用于给页码发送请求
    def __init__(self, thread_name, page_queue, data_queue):
        super(Crawl_page,self).__init__()
        #线程名称
        self.thread_name = thread_name
        self.page_queue = page_queue
        self.data_queue = data_queue
        self.header = {
            "Host": "jobs.51job.com",
            "Connection": "keep-alive",
            "Upgrade-Insecure-Requests": "1",
            "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.149 Safari/537.36",
            "Sec-Fetch-Dest": "document",
            "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
            "Sec-Fetch-Site": "none",
            "Sec-Fetch-Mode": "navigate",
            "Sec-Fetch-User": "?1",
            "Accept-Encoding": "gzip, deflate, br",
            "Accept-Language": "zh-CN,zh;q=0.9"
        }

    def run(self):
        #多线程的启动方法
        print("当前启动的线程为{}".format(self.thread_name))
        #使用no_wait就相当于将timeout设置为无限小，当队列堵塞get不出来东西就会直接抛异常
        #当page_flag 为True的时候，终止对page_queue的get
        while not page_flag:

            try:
                page = self.page_queue.get_nowait()
            except Exception as e:
                pass
            else:
                # 因为不同页面网页只会变化同一个url中的某一处的数字，可以用page的值去格式化每一次的page_url
                page_url = "https://search.51job.com/list/000000,000000,0000,00,9,99,python,2,{}.html".format(page)
                print("当前请求的URL为：{}".format(page_url))
                #对当前页面的url发送get请求，并将获取的数据转码
                response = requests.get(url=page_url, headers=self.header)
                response.encoding = "gbk"
                #将转码后的数据放入data_queue中
                self.data_queue.put(response.text)

class Crawl_html(threading.Thread):
    #用于处理页码返回数据
    pass


page_flag = False
data_flag = False
def main():
    #页码队列
    page_queue = Queue()
    #网页数据队列
    data_queue = Queue()

    #向page_queue中存储页码
    for page in range(1,915):
        page_queue.put(page)
    #qsize()用于获取队列长度
    print("当前页码队列中储存的页码总量为{}".format(page_queue.qsize()))

    crawlist = ["页码处理线程1号","页码处理线程2号","页码处理线程3号"]
    #存储线程
    page_thread_list = []
    for thread_name_page in crawlist:
        #引用Crawl_page函数，创建线程
        thread_page = Crawl_page(thread_name=thread_name_page, page_queue=data_queue, data_queue=data_queue)
        #启动线程
        thread_page.start()
        #将创建好的线程导入列表中，方便后面使用这些线程
        page_thread_list.append(thread_page)

    #线程的停止
    global page_flag
    #当page_queue不为空时，正常运行；当page_queue为空，page_flag变为True,从而让run()函数停止运行
    while not page_queue.empty():
        pass
    page_flag = True

    #释放线程
    for thread_page_join in page_thread_list:
        thread_page_join.join()
        print(thread_page_join.thread_name,"处理结束")


if __name__ == "__main__":
    main()

相关截图：

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运行到这里就一直这样，然后电脑风扇在疯狂转...是我代码有问题还是我网络有问题？