錯誤如下：
error: could not lock config file /usr/local/Homebrew/.git/config: Permission denied
fatal: could not set 'core.repositoryformatversion' to '0'
Failed during: git init -q
報錯原因：權限不足
想到用sudo，
貌似不可以，所以，可以給文件夾增加權限，注意這里usr不要寫成user
sudo chgrp -R admin /usr/local
sudo chmod -R g+w /usr/local
https://brew.sh/index_zh-cn
再進行安裝HomeBrew就可以了
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
檢查是否安裝成功
brew -v
Homebrew 2.0.6