vim复制代码包含注释时格式会乱掉(转)

乱码问题
一般来说只需要正确设置vim的编码识别序列就很少会遇到乱码问题：
set fileencodings=ucs-bom,utf-8,utf-16,gbk,big5,gb18030,latin1

转自：http://socol.iteye.com/blog/579503

每次复制代码时，如果代码里有 // 这样的注释就容易让格式乱掉，通过下面的设置就可以避免这种情况。

粘贴代码时取消自动缩进
VIM在粘贴代码时会自动缩进，把代码搞得一团糟糕，甚至可能因为某行的一个注释造成后面的代码全部被注释掉，我知道有同学这个时候会用vi去打开文件再粘贴上去（鄙人以前就是这样），其实需要先设置一下
set paste
然后再进入插入模式粘贴，代码就不会被自动缩进。可是敲代码的时候需要自动缩进，又得改回来:
set nopaste
最方便的方法就是在.vimrc中加一句：
set pastetoggle=<F9>
以后在插入模式下，只要按F9键就可以切换自动缩进。

中文乱码问题

set fileencodings=utf-8,ucs-bom,gb18030,gbk,gb2312,cp936
   set termencoding=utf-8
   set encoding=utf-8

.vimrc

	" An example for a vimrc file.
	"
	" Maintainer:	Bram Moolenaar <[e-mail]>
	" Last change:	2000 Jan 06
	"
	" To use it, copy it to
	"     for Unix and OS/2:  ~/.vimrc
	"	      for Amiga:  s:.vimrc
	"  for MS-DOS and Win32:  $VIM\_vimrc
	"		for VMS:  sys$login:.vimrc

	" Use Vim settings, rather then Vi settings (much better!).
	" This must be first, because it changes other options as a side effect.
	set nocompatible

	"set fileencodings=gb2312,gb18030,utf-8
	"set termencoding=utf-8
	"set encoding=prc

	set nu
	set bs=2		" allow backspacing over everything in insert mode
	set noai			" always set autoindenting on
	"set backup		" keep a backup file
	set viminfo='20,\"50	" read/write a .viminfo file, don't store more
				" than 50 lines of registers
	set history=50		" keep 50 lines of command line history
	set ruler		" show the cursor position all the time
	"set nonu
	"set bdir=~/.vimbackup
	set term=linux
	set nowrap
	set bg=dark
	set tabstop=4
	" For Win32 GUI: remove 't' flag from 'guioptions': no tearoff menu entries
	" let &guioptions = substitute(&guioptions, "t", "", "g")

	" Don't use Ex mode, use Q for formatting
	map Q gq

	" Make p in Visual mode replace the selected text with the "" register.
	vnoremap p <Esc>:let current_reg = @"<CR>gvdi<C-R>=current_reg<CR><Esc>

	" Switch syntax highlighting on, when the terminal has colors
	" Also switch on highlighting the last used search pattern.
	if &t_Co > 2 || has("gui_running")
	  syntax on
	  set hlsearch
	endif

	" Only do this part when compiled with support for autocommands.
	if has("autocmd")

	 " In text files, always limit the width of text to 78 characters
	 autocmd BufRead *.txt set tw=78

	 augroup cprog
	  " Remove all cprog autocommands
	  au!

	  " When starting to edit a file:
	  "   For C and C++ files set formatting of comments and set C-indenting on.
	  "   For other files switch it off.
	  "   Don't change the order, it's important that the line with * comes first.
	  autocmd FileType *      set formatoptions=tcql nocindent comments&
	  autocmd FileType c,cpp  set formatoptions=croql cindent comments=sr:/*,mb:*,el:*/,://
	 augroup END

	 augroup gzip
	  " Remove all gzip autocommands
	  au!

	  " Enable editing of gzipped files
	  " set binary mode before reading the file
	  autocmd BufReadPre,FileReadPre	*.gz,*.bz2 set bin
	  autocmd BufReadPost,FileReadPost	*.gz call GZIP_read("gunzip")
	  autocmd BufReadPost,FileReadPost	*.bz2 call GZIP_read("bunzip2")
	  autocmd BufWritePost,FileWritePost	*.gz call GZIP_write("gzip")
	  autocmd BufWritePost,FileWritePost	*.bz2 call GZIP_write("bzip2")
	  autocmd FileAppendPre			*.gz call GZIP_appre("gunzip")
	  autocmd FileAppendPre			*.bz2 call GZIP_appre("bunzip2")
	  autocmd FileAppendPost		*.gz call GZIP_write("gzip")
	  autocmd FileAppendPost		*.bz2 call GZIP_write("bzip2")

	  " After reading compressed file: Uncompress text in buffer with "cmd"
	  fun! GZIP_read(cmd)
	    " set 'cmdheight' to two, to avoid the hit-return prompt
	    let ch_save = &ch
	    set ch=3
	    " when filtering the whole buffer, it will become empty
	    let empty = line("'[") == 1 && line("']") == line("$")
	    let tmp = tempname()
	    let tmpe = tmp . "." . expand("<afile>:e")
	    " write the just read lines to a temp file "'[,']w tmp.gz"
	    execute "'[,']w " . tmpe
	    " uncompress the temp file "!gunzip tmp.gz"
	    execute "!" . a:cmd . " " . tmpe
	    " delete the compressed lines
	    '[,']d
	    " read in the uncompressed lines "'[-1r tmp"
	    set nobin
	    execute "'[-1r " . tmp
	    " if buffer became empty, delete trailing blank line
	    if empty
	      normal Gdd''
	    endif
	    " delete the temp file
	    call delete(tmp)
	    let &ch = ch_save
	    " When uncompressed the whole buffer, do autocommands
	    if empty
	      execute ":doautocmd BufReadPost " . expand("%:r")
	    endif
	  endfun

	  " After writing compressed file: Compress written file with "cmd"
	  fun! GZIP_write(cmd)
	    if rename(expand("<afile>"), expand("<afile>:r")) == 0
	      execute "!" . a:cmd . " <afile>:r"
	    endif
	  endfun

	  " Before appending to compressed file: Uncompress file with "cmd"
	  fun! GZIP_appre(cmd)
	    execute "!" . a:cmd . " <afile>"
	    call rename(expand("<afile>:r"), expand("<afile>"))
	  endfun

	 augroup END

	 " This is disabled, because it changes the jumplist.  Can't use CTRL-O to go
	 " back to positions in previous files more than once.
	 if 0
	  " When editing a file, always jump to the last cursor position.
	  " This must be after the uncompress commands.
	   autocmd BufReadPost * if line("'\"") && line("'\"") <= line("$") | exe "normal `\"" | endif
	 endif

	endif " has("autocmd")
	set fileencodings=utf-8,ucs-bom,gb18030,gbk,gb2312,cp936
	set termencoding=utf-8
	set encoding=utf-8