参考这个文章解决了问题：ERROR: Could not build wheels for hnswlib, which is required to install pyproject.toml-based projects
以下是我安装的时候，报错：
Building wheel for hnswlib (pyproject.toml) ... error
error: subprocess-exited-with-error
× Building wheel for hnswlib (pyproject.toml) did not run successfully.
│ exit code: 1
╰─> [5 lines of output]
running bdist_wheel
running build
running build_ext
building 'hnswlib' extension
error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/
[end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for hnswlib
Failed to build hnswlib
ERROR: Could not build wheels for hnswlib, which is required to install pyproject.toml-based projects
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首先我在这个网址进行了文件的下载：https://visualstudio.microsoft.com/zh-hans/visual-cpp-build-tools/
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下载完成之后，鼠标选中，右键，以管理员身份运行
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打开的软件，选择这两个地方：
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全部安装完毕，再重新尝试以下命令进行安装：
pip install hnswlib
