vimscript 调用与执行 [英] vimscript call vs. execute

问题描述

在vimscript中，call和execute有什么区别?我应该在哪些场景/用例中使用一种和另一种?

In vimscript, what is the difference between call and execute? In what scenarios / use cases should I use one vs the other?

(免责声明，我知道 vim 中提供了广泛的在线帮助 - 我正在寻求对这个特定问题的简明答案).

(Disclaimer, I am aware of the extensive online help available within vim - I am seeking a concise answer to this specific question).

推荐答案

来自自己写插件和阅读别人代码的经验:

From the experience of writing my own plugins and reading the code of others:

:call 用于调用函数，例如:

:call is for calling functions, e.g.:

function! s:foo(id)
    execute 'buffer' a:id
endfunction

let target_id = 1
call foo(target_id)

:execute 用于两件事:

:execute is used for two things:

1. 构造一个字符串并对其求值.这通常用于将参数传递给命令:

1. Construct a string and evaluate it. This is often used to pass arguments to commands:

execute 'source' fnameescape('l:path')

评估函数的返回值(可以说是相同的):

Evaluate the return value of a function (arguably the same):

function! s:bar(id)
    return 'buffer ' . a:id
endfunction

let target_id = 1
execute s:bar(target_id)

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