Python 2.7获取网站源代码的几种方式_20160924

#coding:utf-8
import urllib2,cookielib

if __name__ == '__main__':
    root_url='https://www.baidu.com/'
    # 第一种
    print "第一种"
    response1=urllib2.urlopen(root_url)
    print response1.getcode()
    print len(response1.read())

    #第二种
    print "第二种"
    request=urllib2.Request(root_url)
    response2=urllib2.urlopen(request)
    print response2.getcode()
    print len(response2.read())

    # 第三种
    print "第三种"
    cj=cookielib.CookieJar()
    opener=urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
    urllib2.install_opener(opener)
    response3 = urllib2.urlopen(root_url)
    print response3.getcode()
    print "cookie为："+str(cj)
    print response3.read()

执行结果