vim - Use selection in ex command

Question

How do I use a visual selection in an ex command in vim? For example, suppose I have selected the text foo, and I want to use this to run :! open http://hackage.haskell.org/package/foo.

Answer 1

您可以使用vmapyank 文本并从寄存器 0 中使用它：

 vmap <F2> y:!open http://hackage.haskell.org/package/<C-R>0<CR>