vim中把用正则表达式匹配的字符串写到一个新文件的方法

redirect selected parts to a new file

1: :g/patten/y A Append to the

contents of the register if its name is given

uppercase {A-Z}

create a file in vim

"ap

2:delete unwanted lines

:g/^[^0-9]\+\n/d

3: :redir >> tmp

:g/^\d\+/p

:redir END

"send output of previous global command to a new window

:nmap <F5> :redir @a<CR>:g//<CR>:redir END<CR>:new<CR>:put! a<CR><CR>