I set right font( power line font name "hack") and
let g:airline_powerline_fonts = 1
but I don's know why the right corner not display well like left. I try to set font size and other font family or update airline.But no help on this problem.
Another question was I set guifont and guifontwide but, only I reload the vimrc file vim will work right and display right font.It like that
this is vim when i not reload vimrc
and this is when i reload vimrc
MacVim Version 8.0 (121) on OSX 10.11.6