安装好scrapy之后，运行scrapy --help后报错：

> scrapy --help
scrapy : 无法将“scrapy”项识别为 cmdlet、函数、脚本文件或可运行程序的名称。请检查名称的拼写，如果包括路径，请确保路径正确，然后再试一次。
所在位置 行:1 字符: 1
+ scrapy --help
+ ~~~~~~+ CategoryInfo          : ObjectNotFound: (scrapy:String) [], CommandNotFoundException+ FullyQualifiedErrorId : CommandNotFoundException

首先通过pip show scrapy 找到安装路径

>pip show scrapy
Name: Scrapy
Version: 2.11.1
Summary: A high-level Web Crawling and Web Scraping framework
Home-page: https://scrapy.org
Author: Scrapy developers
Author-email: pablo@pablohoffman.com
License: BSD
Location: C:\Users\xxx\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local-packages\Python311\site-packages
Requires: cryptography, cssselect, itemadapter, itemloaders, lxml, packaging, parsel, protego, PyDispatcher, pyOpenSSL, queuelib, service-identity, setuptools, tldextract, Twisted, w3lib, zope.interface
Required-by:

进入C:\Users\xxx\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local-packages\Python311\site-packages路径之后，找到了scrapy的文件夹，
但并没有看到scrapy.exe文件。
C:\Users\xxx\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local-packages\Python311\Scripts文件夹中，找到了scrapy.exe。
将这个路径放入到环境变量就可以了。
参考来源：
https://blog.csdn.net/qq_39666838/article/details/88653072