22.2.3 interactive 使用示例

这里是一些 interactive 的示例:

(defun foo1 ()              ; foo1 不带参数,
    (interactive)           ;   仅向前移动两个单词。
    (forward-word 2))
     ⇒ foo1

(defun foo2 (n)             ; foo2 接受一个参数,
    (interactive "^p")      ;   该参数为数字前缀参数。
                            ; shift-select-mode 下,
                            ;   会激活或扩展区域。
    (forward-word (* 2 n)))
     ⇒ foo2

(defun foo3 (n)             ; foo3 接受一个参数,
    (interactive "nCount:") ;   通过迷你缓冲读取该参数。
    (forward-word (* 2 n)))
     ⇒ foo3

(defun three-b (b1 b2 b3)
  "选择三个已存在的缓冲区。
将它们放入三个窗口,并选中最后一个。"
    (interactive "bBuffer1:\nbBuffer2:\nbBuffer3:")
    (delete-other-windows)
    (split-window (selected-window) 8)
    (switch-to-buffer b1)
    (other-window 1)
    (split-window (selected-window) 8)
    (switch-to-buffer b2)
    (other-window 1)
    (switch-to-buffer b3))
     ⇒ three-b
(three-b "*scratch*" "declarations.texi" "*mail*")
     ⇒ nil
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