• 請求模組定義了以下功能:
  urllib.request.urlopen(url, data=None, [timeout, ]*, cafile=None, capath=None, cadefault=False, context=None) 
  Open the URL url, which can be either a string or a Request object.
  開啟URL URL，它可以是字串或請求物件。
  data must be an object specifying additional data to be sent to the server, or None if no such data is needed. See Request for details.
  資料必須是指定要傳送到伺服器的附加資料的物件，否則不需要這些資料。
  有關詳細資訊,請參閱請求。
  urllib.request module uses HTTP/1.1 and includes Connection:close header in its HTTP requests.
  urllib。
   
  請求模組使用HTTP/1.1幷包括連線:在其HTTP請求中關閉頭部。
  The optional timeout parameter specifies a timeout in seconds for blocking operations like the connection attempt (if not specified, the global default timeout setting will be used). This actually only works for HTTP, HTTPS and FTP connections.
  可選的timeout引數指定了阻塞操作(如未指定的全域性預設超時設定)的秒數。
   
  這實際上只適用於HTTP、HTTPS和FTP連線。
  If context is specified, it must be a ssl.SSLContext instance describing the various SSL options. See HTTPSConnection for more details.
  如果指定了上下文，它必須是一個ssl。描述各種SSL選項的SSLContext例項。有關更多細節，請參見HTTPSConnection。
  The optional cafile and capath parameters specify a set of trusted CA certificates for HTTPS requests. cafile should point to a single file containing a bundle of CA certificates, whereas capath should point to a directory of hashed certificate files. More information can be found in ssl.SSLContext.load_verify_locations().
  可選的cafile和capath引數為HTTPS請求指定了一組受信任的CA證書。
  cafile應該指向包含一個CA證書包的單個檔案，而capath應該指向一個雜湊證書檔案的目錄。
  在ssl.sslcontext.load_verify_location()中可以找到更多的資訊。
  The cadefault parameter is ignored.
  cadefault引數被忽略。
   
  

• This function always returns an object which can work as a context manager and has methods such as

• 該函式始終返回一個物件，該物件可以作為上下文管理器工作，並具有諸如此類的方法。

geturl() � return the URL of the resource retrieved, commonly used to determine if a redirect was followed 

geturl()�返回的URL資源檢索,常用來確定一個重定向之後
info() � return the meta-information of the page, such as headers, in the form of an email.message_from_string() instance (see Quick Reference to HTTP Headers) 

info()�返回頁面的元資訊,如標題,的形式email.message_from_string()例項(參見快速參考HTTP頭)
getcode() � return the HTTP status code of the response. 

getcode()�返回響應的HTTP狀態程式碼。參考HTTP頭)