1.使用前在~/.bashrc中添加如下内容

#增加终端 vim tmux的256色
export TERM=xterm-256color        # for common 256 color terminals (e.g. gnome-terminal)
export TERM=screen-256color       # for a tmux -2 session (also for screen)
#export TERM=rxvt-unicode-256color # for a colorful rxvt unicode sessionxport TERM=xterm-256color