vimrc - I am learning vimscript recently, how can I make gvim automatically load the file after the vimscript file is modified?

Question

For examplea.vimThe content is as follows

let a = 1
echo a    "输出1

When I modify let a = 1 to let a = 2, I need to run the command :source a.vim to output the modified result2.
I hope that gvim can automatically load a.vim after a.vim is modified.
How to do this? Please give me some advice from the experts.

Answer 1

You can consider using autocmd BufWritePost to trigger events when saving and automatically run the source command