路径
Check if you have a ~/.vim/ directory in the root path. If you don't, create one. Inside it, create a directory called pack (~/.vim/pack/). Vim automatically knows to search inside this directory for packages.
加载
自动加载
you need to put them in the start/ directory.
~/.vim/pack/*/start/
/*/ is an arbitrary name and can be anything you want. let's name it packdemo/
~/.vim/pack/packdemo/start/
手动加载
~/.vim/pack/*/opt/
