day95 多线程实现并发请求
爬虫性能相关
-傻等 response=request.get()
-机智 response=request.get();
response=request.get();
response=request.get()
线程多了,也不好,所以有线程池。
pool=ThreadPoolExecutor(5)
url_list=[
'http://www.baidu.com',
‘http://www.sina.com’
]
18min03