设置超时,处理cookie,多线程

最新推荐文章于 2024-05-29 16:48:22 发布

原创最新推荐文章于 2024-05-29 16:48:22 发布 · 584 阅读

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本文探讨了并发编程的基本概念及其在实际场景中的应用，重点介绍了如何利用线程池来优化多线程任务的执行效率。通过实例分析，展示了线程池在任务调度、资源复用方面的优势。

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import socket
import urllib
from urllib import request
import http.cookiejar
import threading
socket.setdefaulttimeout(10)
cj = http.cookiejar.CookieJar()
opener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cj))

lock = threading.Lock()
def ThreadProc(n):
    if lock.acquire():
        print(n)
        lock.release()
class ThreadClass(threading.Thread):
    def __init__(self, n):
        threading.Thread.__init__(self)
        self.n = n
    def run(self):
        if lock.acquire():
            print(self.n)
            lock.release()
threads = []
for i in range(10):
    threads.append(threading.Thread(target = ThreadProc, args = (i,)))
for i in threads:
    i.start()
for i in threads:
    i.join()
threads.clear()
for i in range(10):
    threads.append(ThreadClass(i * 100))
for i in threads:
    i.start()
for i in threads:
    i.join()
threading.Semaphore(3)
def Fn(n):
    print(n)
    threading.Timer(1, Fn, (n + 1,)).start()
Fn(1)