刚入手macbook pro M1在官网运行brew安装命令后，依然找不到brew命令，需要查看下是否有下面两个环境变量的导出 运行
vim ~/.zshrc
检查根目录.zshrc中是否有
export PATH=$HOME/bin:/usr/local/bin:$PATH
export PATH="/opt/homebrew/bin:$PATH"
可以用echo 添加上导出语句，然后运行source命令，只是生效
echo 'export PATH="/opt/homebrew/bin:$PATH"' >> $HOME/.zshrc
source ~/.zshrc
