下載地址： http://www.vim.org/scripts/script.php?script_id=1218
install details ***NOTE***: In version 2.0.0 the script file and help file were renamed to NERD_commenter.vim and NERD_commenter.txt. If you are upgrading from version < 2.0.0 to version >= 2.0.0 then you must delete the old files NERD_comments.vim and NERD_comments.txt.
Stick the NERD_comments.vim in ~/.vim/plugin and NERD_comments.txt in ~/.vim/doc.
Run :helptags ~/.vim/doc.
Restart vim.
Go :help NERD_commenter.txt to read the help file.
基本命令：
,cc Comments out the current line or text selected in visual mode.
,c<space> Toggles the comment state of the selected line(s). If the topmost selected line is commented, all selected lines are uncommented and vice versa.
,ci Toggles the comment state of the selected line(s) individually. Each selected line that is commented is uncommented and vice versa
,cs Comments out the selected lines ``sexily''
,c$ Comments the current line from the cursor to the end of line.
,cy Same as ,cc except that the commented line(s) are yanked before commenting.
,cu Uncomments the selected line(s).