from urllib import request,parseimport jsonfrom http import cookiejar# 创建Cookie对象cookie_object = cookiejar.CookieJar()# 将Cookie对象添加至请求handler = request.HTTPCookieProcessor(cookie_object)opener = request.build_opener(handler)url = 'http://www.renren.com/ajaxLogin/login?1=1&uniqueTimestamp=2018721545104'form = {'email':'17698881565','icode':'','origURL':'http://www.renren.com/home','domain':'renren.com','key_id':'1','captcha_type':'web_login','password':'262a5eeb80725cbb0077a0181ac4ca807895630e0e4db14035c31d6bb367a423','rkey':'39b392090c635431e86ef76d46f31f40','f':'http%3A%2F%2Fguide.renren.com%2Ffillinfonew',}# 转换form格式，开始访问form_byte = parse.urlencode(form).encode('utf-8')response = opener.open(url,form_byte)# 获取返回内容html_bytes = response.read()# 将json转化为字典格式res_dict = json.loads(html_bytes.decode('utf-8'))# 取出所需地址home_url = res_dict['homeUrl']# print(home_url)# 访问地址获得数据response = opener.open(home_url)html_bytes = response.read()print(html_bytes.decode('utf-8'))