爬虫2 urllib用法

from urllib import request,parse

# 1.    解析数据
# 解析一条
# response = request.urlopen(url='http://httpbin.org/get?username={}'.format(parse.quote('哈哈')))
# print(response.read())
# # 解析字典
# data1 = {
#     'username':'哈哈',
#     'pass' : 23564
# }
# res = parse.urlencode(data1)
# print(res)


# 2.    模拟请求头
# headers = {
#     'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.26 Safari/537.36 Core/1.63.6721.400 QQBrowser/10.2.2243.400'
# }
# req = request.Request(
#     url='http://img5.imgtn.bdimg.com/it/u=935292084,2640874667&fm=26&gp=0.jpg',
#     headers=headers
#     )
# response = request.urlopen(req)
# print(response.read())


# 3.    发送一个get请求
# response = request.urlopen(url='http://httpbin.org/get',timeout=0.1)
# 发送一个get请求
# response = request.urlopen(url='http://httpbin.org/get')
# print(response.getcode())         #返回码
# print(response.info())              #返回头部信息
# print(response.read())              #返回内容
# response2 = request.urlopen(url='http://httpbin.org/post',
#                             data = b'username=haha&password=12345'