官网：http://docs.python-requests.org/en/master/
请求方式
requests.get()
requests.post()
requests.put()
requests.delete()
requests.head()
requests.options()
get请求：
requests.get(url, **kwargs)
参数：
method:
url:
params: 默认 None Dictionary or bytes to be sent in the query string get请求的url参数
data: 默认 None Dictionary or bytes to send in the body post请求的请求体
headers: 默认 None Dictionary of HTTP Headers to send 请求头
cookies: 默认 None Dict or CookieJar object to send 请求cookies
files: 默认 None Dictionary of ``'filename': file-like-objects`` for multipart encoding upload put请求上传文件
auth: 默认 None Auth tuple or callable to enable Basic/Digest/Custom HTTP Auth
timeout: 默认 None How long to wait for the server to send data before giving up, as a float, or a (`connect timeout, read timeout <user/advanced.html#timeouts>`_) tuple. 请求超时时间
allow_redirects: 默认 True
proxies: 默认 None Dictionary mapping protocol to the URL of the proxy. 代理
hooks: 默认 None
stream: 默认 None Whether to immediately download the response content. Defaults to ``False`` 是否立即下载响应内容
verify: 默认 None if ``True``, the SSL cert will be verified. A CA_BUNDLE path can also be provided.
cert: 默认 None if String, path to ssl client cert file (.pem). If Tuple, ('cert', 'key') pair.
json: 默认 None json to send in the body put请求体
未完待续