摘要： 1. command 2. open the py file, modify the start_url and parse function 3. save the result 4. multiple items from a page 5. get the nex page url 6. sc 阅读全文

摘要： 1. in acconda prompt, run shell 2. test response 3. css selector 4. get html by css selector 5. get text, it returns a array 6. get single text, it re 阅读全文