requests：用于处理URL资源，相比于Python内置的urllib模块更为方便
import requests
"""GET请求"""
def get():
req = requests.get('https://www.douban.com/')
print(req.text)
"""GET请求，带参数"""
def get_params():
r = requests.get('https://www.douban.com/search', params={
'q':'python',
'cat':'1001',
})
print(r.url)
print(r.content)
"""GET，带请求头,cookies,超时时间"""
def get_header():
cs = { "token":"123456" }
session = requests.session()
# 添加cookies
requests.utils.add_dict_to_cookiejar(session.cookies, cs)
r = session.get('https://www.douban.com', headers={
'User-Agent':'Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit'
}, timeout=2)
print(r.text)
print(r.headers)
# 遍历cookies
for k, vin session.cookies.items():
print(k, '==', v)
"""POST请求"""
def post():
"""默认 application/x-www-form-urlencoded 编码"""
params = {'form_email':'abc@example.com', 'form_password':'123456'}
# params/data:请求的数据
# r = requests.post('https://accounts.douban.com/login', params=params)
# 传入json数据,内部自动序列化为JSON
r = requests.post('https://accounts.douban.com/login', json=params)
print(r.content)
"""文件上传"""
def post_file():
# 上传的文件
upload_files = {'file':open('./images/test.jpg', 'rb')}
r = requests.post('', files=upload_files)
def main():
# get()
# get_params()
get_header()
# post()
if __name__ =='__main__':
main()
