1、增加vim判断操作系统的代码；
2、增加设置文件内容缩进的代码；
添加powerline插件
Revert "添加powerline插件"

This reverts commit e934e5925c9c3a5bd7f0b9600ba68b4a12ef05bd.
屏蔽Powerline的配置
Revert "1、增加vim判断操作系统的代码；"

This reverts commit 6bf6dbc2a2df350db20e3837fc26ecf459f2e5b3.
Revert "屏蔽Powerline的配置"

This reverts commit 8af5bd70f76f27439b6180d813fe019fa6984c08.
Revert "删除文件"

This reverts commit 27e885cb94f52424c49b1fe86f3e795425217233.
删除netrwhist文件