Python爬虫，,#Author:xu

Python爬虫，,#Author:xu

#Author:xuesong liimport geventfrom gevent import monkeymonkey.patch_all()from  urllib.request import urlopenimport timedef pa_web_page(url):    print("GET url",url)    req = urlopen(url)    data =req.read()    print(data)    f = open("test",‘w‘)    f.read(data)    f.close()       print(‘%d bytes received from %s.‘ % (len(data), url))t_start = time.time()pa_web_page("http://www.autohome.com.cn/beijing/")pa_web_page("http://www.xiaohuar.com/")print("time cost:",time.time()-t_start)t2_start = time.time()gevent.joinall([        #gevent.spawn(pa_web_page, ‘https://www.python.org/‘),        gevent.spawn(pa_web_page, ‘http://www.autohome.com.cn/beijing/‘),        gevent.spawn(pa_web_page, ‘http://www.xiaohuar.com/‘),        #gevent.spawn(pa_web_page, ‘https://github.com/‘),])print("time cost t2:",time.time()-t2_start)

Python爬虫