# 使用多线程：在协程中集成阻塞io
import asyncio
import socket
import time
from urllib.parse import urlparse
from concurrent.futures import ThreadPoolExecutordef get_url(url):# 通过socket请求htmlurl = urlparse(url)host = url.netlocpath = url.pathif path == '':path = '/'# 建立连接client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)client.connect((host, 80))client.send("GET {} HTTP/1.1\r\nHost:{}\r\nConnection:close\r\n\r\n".format(path, host).encode('utf-8'))data = b""while True:d = client.recv(1024)if d:data += delse:breakdata = data.decode('utf-8')html_data = data.split('\r\n\r\n')[1]print(html_data)client.close()if __name__ == '__main__':start_time = time.time()loop = asyncio.get_event_loop()excutor = ThreadPoolExecutor(3)tasks = []for url in range(1, 21):url = 'http://shop.projectsedu.com/goods/{}/'.format(url)task = loop.run_in_executor(excutor, get_url, url)tasks.append(task)loop.run_until_complete(asyncio.wait(tasks))print('last time:{}'.format(time.time() - start_time))"""
运行结果：
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last time:6.9674131870269775
"""

 
学习视频

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