--- a/.vimrc	Mon Jan 26 01:08:12 2015 +0800
+++ b/.vimrc	Tue Jan 27 21:17:53 2015 +0800
@@ -65,11 +65,11 @@
 nmap <C-Down> ddp
 
 " show column
-nnoremap <F3> :setlocal cursorcolumn!<CR>
+nnoremap <F3> :setlocal cursorcolumn! cursorcolumn?<CR>
 imap <F3> <C-O><F3>
 
 " show listchars
-nnoremap <F4> :setlocal list!<CR>
+nnoremap <F4> :setlocal list! list?<CR>
 imap <F4> <C-O><F4>
 
 syntax on