在vim map中，“＆amp;”是什么意思

Question

在某些地图中，我发现了:imap的差异。

有些地图开始*，是否有些地图开始&。

是什么意思？

Answer 1

来自:help map-listing：

Just before the {rhs} a special character can appear:
    *       indicates that it is not remappable
    &       indicates that only script-local mappings are remappable
    @       indicates a buffer-local mapping