key conflicts with IDE
IDE menu: file ->settings->other settings->Vim Emulation
config file
~/.ideavimrc
use system clipboard as unnamed register
~/.ideavimrc: set clipboard^=unnamed,unnamedplus
windows下
.ideavimrc位置:C:\Users\自己用户名
use system clipboard as unnamed register
set clipboard=unnamed
set clipboard=unnamedplus
试了下set clipboard^=unnamed,unnamedplus不好使,知道原因的请给我留言