这个下令会开始下载并运行 Homebrew 的安装脚本。在安装过程中，可能会要求你输入 Mac 用户密码，按照提示输入即可。 安装软件包：
Homebrew安装的软件包，只需在终端中输入 brew install 下令，
brew install [软件包名称]
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卸载软件包：
若需卸载通过Homebrew安装的软件包，请使用以下下令：
brew uninstall [软件包名称]
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brew更新：
brew update
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三、Matplotlib库安装
使用Homebrew（假如你已经安装了Homebrew）
错误：
brew install matplotlib
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正确：
brew install python-matplotlib
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Mac homebrew 安装matplotlib
在Mac上使用Homebrew安装matplotlib是一个相对直接的过程。但是，值得注意的是，matplotlib依靠于一些C语言扩展，这些扩展需要编译安装。
因此，在安装matplotlib之前，需要确保你的Mac上安装了Xcode下令行工具，由于它们包含了编译所需的工具(耗时非常长，且容易堕落误)。
四、启动虚拟环境
error: externally-managed-environment × This environment is externally managed ╰─> To install Python packages system-wide, try brew install xyz, where xyz is the package you are trying to install. If you wish to install a Python library that isn't in Homebrew, use a virtual environment: python3 -m venv path/to/venv source path/to/venv/bin/activate python3 -m pip install xyz If you wish to install a Python application that isn't in Homebrew, it may be easiest to use 'pipx install xyz', which will manage a virtual environment for you. You can install pipx with brew install pipx You may restore the old behavior of pip by passing the '--break-system-packages' flag to pip, or by adding 'break-system-packages = true' to your pip.conf file. The latter will permanently disable this error. If you disable this error, we STRONGLY recommend that you additionally pass the '--user' flag to pip, or set 'user = true' in your pip.conf file. Failure to do this can result in a broken Homebrew installation. Read more about this behavior here: <https://peps.python.org/pep-0668/> note: If you believe this is a mistake, please contact your Python installation or OS distribution provider. You can override this, at the risk of breaking your Python installation or OS, by passing --break-system-packages. hint: See PEP 668 for the detailed specification. [notice] A new release of pip is available: 24.0 -> 24.1.2 [notice] To update, run: python3.12 -m pip install --upgrade pip
╰─> To install Python packages system-wide, try brew install
xyz, where xyz is the package you are trying to
install.
If you wish to install a non-brew-packaged Python package,
create a virtual environment using python3 -m venv path/to/venv.
Then use path/to/venv/bin/python and path/to/venv/bin/pip.
If you wish to install a non-brew packaged Python application,
it may be easiest to use pipx install xyz, which will manage a
virtual environment for you. Make sure you have pipx installed.
note: If you believe this is a mistake, please contact your Python installation or OS distribution provider. You can override this, at the risk of breaking your Python installation or OS, by passing --break-system-packages.
