#__author__ = 'DouYunQian'
#coding=utf-8
import urllib2
url="https://www.baidu.com/s"
print u"第一种方法",type(u"第一种方法"),type("第一种方法")
response=urllib2.urlopen(url)
print response.getcode()
print len(response.read())
print "第二种方法"
request=urllib2.Request(url)
request.add_header("User-Agent","Mozilla/5.0")
request.add_data("{wd:'welcome'}")
response=urllib2.urlopen(request)
print response.code
print len(response.read())
print "第三种方法"
import cookielib
ck=cookielib.CookieJar()
opener=urllib2.build_opener(urllib2.HTTPCookieProcessor(ck))
urllib2.install_opener(opener)
response=urllib2.urlopen(url)
print response.getcode()
print len(response.read())