这又是啥子问题啊？
D:\新建文件夹\venv\Scripts\python.exe D:/新建文件夹/baidu_spider/spider_main.py
craw 1 : https://baike.baidu.com/item/%E7%8B%97/85474?fr=aladdin
local variable 'url' referenced before assignment
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D:\新建文件夹\venv\Scripts\python.exe D:/新建文件夹/baidu_spider/spider_main.py
craw 1 : https://baike.baidu.com/item/%E7%8B%97/85474?fr=aladdin
local variable 'url' referenced before assignment
2020-03-01
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