mac安装brew
参考:
[macOS(或 Linux)缺失的软件包的管理器 — Homebrew](https://brew.sh/zh-cn/)
[如何解决类似 curl: (7) Failed to connect to raw.githubusercontent.com port 443: Connection refused 的问题 · Issue #10 · hawtim/hawtim.github.io](https://github.com/hawtim/hawtim.github.io/issues/10)
[mac下如何安装homebrew_homebrew is run entirely by unpaid volunteers. ple-CSDN博客](https://blog.csdn.net/ttyy1112/article/details/127102863)