Product manager to learn Python- reptiles crucial no.1

Windows operating system

1, various tutorials - install the Python interpreter -3.7 version, IDE tools -Pycharm,

2, the basic principles of web crawler

　　① initiate a request -, starting a Resquest (request method (post / get, put / delete, etc.)) + Headers- key-value pairs;

　　② content acquisition response -Response, types include HTML / json, binary, etc.; (state of the Status Code, Response header Response Headers)

　　③ corresponding to the content parsing, using regular, page parsing library, JSON, binary object, etc.

　　It ④ saves data, such as text files or databases

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