1.使用numpy提示ModuleNotFoundError: No module named 'numpy'
2.切换到Python的安装路径下面想要安装numpy模块，报错提示“Unknown option: ignore-installed“”Unknown or unsupported command 'install'”
3.看到有大佬说要切换到Scripts文件夹下面下载numpy,但是发现还是报错WARNING: There was an error checking the latest version of pip.提示不是最新版本的Pip
4.于是安装最新版本的pip
5.接着安装numpy，发现还是报错
6.于是通过镜像下载，pip install -i https://pypi.tuna.tsinghua.edu.cn/simple numpy，终于成功
7.再去运行我的程序，成功
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