這是最后輸出的結果，請教怎么解決?。?/h1>

第一種方法

200

118011

第二種方法

Traceback (most recent call last):

? File "C:\Users\admin\eclipse-workspace\imoocc\src\test\test1.py", line 16, in <module>

? ? request.add_header("User-agent","Mozilla/5.0")

AttributeError: addinfourl instance has no attribute 'add_header'

從第二種方法就運行不出來啦，請教怎么解決??？ 用的python2.7版本

下面是我的代碼

#coding=utf-8

import urllib2

import cookielib

url = "http://www.baidu.com"

print '第一種方法'

response1= urllib2.urlopen(url)

print response1.getcode()

print len(response1.read())

print "第二種方法"

request = urllib2.urlopen(url)

request.add_header("User-agent","Mozilla/5.0")

response2= urllib2.urlopen(url)

print response2.getcode()

print len(response2.read())

print "第三種方法"

cj = cookielib.CookieJar()

opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))

urllib2.install_opener(opener)

response3= urllib2.urlopen(url)

print response3.getcode()

print len(response3.read())

print cj

print response3.read()