“错误的类型参数:commandp"将 lambda 绑定到键时出错 [英] "Wrong type argument: commandp" error when binding a lambda to a key

问题描述

我在这里收到错误的类型参数:commandp，(lambda nil (forward-line 5))".

I am getting a "Wrong type argument: commandp, (lambda nil (forward-line 5))" here.

(global-set-key [?M-n] (lambda () (forward-line 5)))

错误是什么?我很确定它很简单&我遗漏了一些明显的东西.

What is the error? I'm fairly sure it's simple & I'm missing something obvious.

推荐答案

global-set-key 需要交互式命令.(lambda () (interactive) (forward-line 5)) 应该可以工作.

global-set-key expects an interactive command. (lambda () (interactive) (forward-line 5)) ought to work.

顺便说一句，C-h f commandp 是此类错误的一个很好的起点.

By the way, C-h f commandp is a pretty good starting point for errors like that.

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