Question

我有一个我要绑定到密钥的代码段：

(define-key (lisp-interaction-mode-map) (kdb "C-c e")
  (let ((result (eval (read (buffer-substring
                             (point-at-bol) (point-at-eol))))))
    (goto-char (point-at-eol))
    (insert (format " ; %s" result))))

然而，当C-c v *scratch*时，我得到了

define-key: Symbol's function definition is void: lisp-interaction-mode-map

Answer 1

你有lisp-interaction-mode-map左右的括号，Lisp解释这意味着你要调用名为lisp-interaction-mode-map的函数。相反，您希望将其用作变量。

我还做了一些其他的编辑，你需要得到你必须工作的东西。我假设你写了read以提示输入用户输入的字符串：

(define-key lisp-interaction-mode-map (kbd "C-c C-e")
  (lambda (result)
    (interactive (list (read-from-minibuffer (buffer-substring (point-at-bol) (point-at-eol)))))
    (goto-char (point-at-eol))
    (insert (format " ; %s" result))))

Answer 2

正常形式有什么问题？

(define-key lisp-interaction-mode-map [(control e)] 'eval-defun)

define-key：符号的函数定义为void：lisp-interaction-mode-map

2 个答案: