Golang Version Switch

1. remove /usr/local/go if you install golang using pkg installer

sudo rm -rf /usr/local/go
sudo rm /etc/paths.d/go

2. use homebrew to install golang

brew install go

3. use homebrew to install golang different versions

brew install go@1.19
brew install go@1.18

4. switch between golang version, for example: switch from 1.18 to 1.19

brew unlink go
brew link go@1.19