Emacs:C-C%在auctex做什么?我怎样才能让它表现得更好?

C-c % 跑 TeX-comment-or-uncomment-paragraph . 关于此处的段落,请参见 manual :

命令: tex注释或取消注释段落
( C-C% )添加或删除 % 从当前段落中每行的开头开始。拆卸时 % 字符段被认为由前面和后面的所有行组成,以 % ,直到第一行非注释。

这里有一个评论功能,可以或多或少地满足您的需求。取消环境注释仅在以下情况下有效 LaTeX-syntactic-comments 是 t (即使那样也不总是很好)。

(defun LaTeX-comment-environment-or-line (arg)
  "Comment or uncomment the current line.
If the current line is the \\begin or \\end line of an environment, comment
or uncomment the whole environment."
  (interactive "*P")
  (save-match-data
    (save-excursion
      (beginning-of-line)
      (cond
       ((looking-at (concat "\\s-*\\(" TeX-comment-start-regexp "\\)?\\s-*"
                            (regexp-quote TeX-esc) "begin"))
        (let ((begin (point)))
          (goto-char (match-end 0))
          (LaTeX-find-matching-end)
          (TeX-comment-or-uncomment-region begin (point) arg)))
       ((looking-at (concat "\\s-*\\(" TeX-comment-start-regexp "\\)?\\s-*"
                            (regexp-quote TeX-esc) "end"))
        (let ((end (save-excursion (end-of-line) (point))))
          (LaTeX-find-matching-begin)
          (beginning-of-line)
          (TeX-comment-or-uncomment-region (point) end arg)))
       (t
        (TeX-comment-or-uncomment-region
         (point) (save-excursion (end-of-line) (point)) arg))))))