插件下载地址：
https://github.com/chxuan/vimplus
错误：
The ycmd server SHUT DOWN (restart with ‘:YcmRestartServer‘). YCM core library not detected; you need to compile YCM before usin g it. Follow the instructions in the documentation.
解决：
在路径： /root/.vim/plugged/YouCompleteMe
执行：
[root@centos8 YouCompleteMe]# /usr/bin/python2.7 install.py
原文：https://www.cnblogs.com/sunbines/p/15258318.html