安装scrapy

准备scrapy安装依赖库
①Wheel
Pip install wheel
②Lxml下载
https://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml
③pyOpenSSL
https://pypi.org/project/pyOpenSSL/#downloads
④twisted下载
https://www.lfd.uci.edu/~gohlke/pythonlibs/#twisted
⑤pywin32
https://sourceforge.net/projects/pywin32/files/pywin32/Build 220/
⑥scrapy
pip install scrapy
⑦检验是否安装成功
在python环境中
import scrapy
scrapy.version_info

在shell中
scrapy