vim - 函数参数不计算

Question

我正在尝试设置几个地图以快速解决合并冲突。这是我的代码：

func! DiffAccept(w)
  diffget a:w
  diffupdate
  normal ]c
endfunc

noremap dh :exec DiffAccept("//2")<CR>
noremap dl :exec DiffAccept("//3")<CR>

每次我尝试使用它时，我都会得到“a:w 没有匹配的缓冲区”。我显然错误地使用了这个变量，但是当我将行更改为“echo a:w”时它会按预期工作。

Answer 1

Vim's evaluation rules are different than most programming languages. You need to use :execute in order to evaluate the (function argument) variable; otherwise, it's taken literally (as a buffer name):

execute 'diffget' a:w

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PS: Prefer using :normal! (with !); this avoids interference from mappings.