打印网页内容不正确，第一种出来 b' ',第二种不显示，请教一下怎么处理。使用的Python3

代码为：

url = ()
response1 = request.urlopen(url)
(response1.getcode())
((response1.read()))
((response1.read()))

()
req = request.Request(url)
req.add_header()
response2 = request.urlopen(req)
(response2.getcode())
((response2.read()))
(response2.read().decode())

()
cj = cookiejar.CookieJar()
opener = request.build_opener(request.HTTPCookieProcessor(cj))
request.install_opener(opener)
response3 = request.urlopen(url)
(response3.getcode())
((response3.read()))
(cj)
(response3.read().decode())

结果如图：