blocks|key|5125202|text|我不认为有一个函数可以做到这一点，但当然你可以把上面的内容包装在一个defun中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5125203|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I don't think there's a function to do that, but of course you can wrap the above in a defun.

blocks|key|5125225|text|有一些常见的替换方法，例如切换大小写，切换"(“to+")"，提高/降低数字。可以通过以下方式完成：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5125226|(defun+reverse-chars+(&optional+arg)
++"Reverse+reciproke+chars+as+\"[\"+to+\"]\",+upcase+or+downcase,
Switch+`\"'+with+`''

If+over+a+number,+add+ARG+to+it.
With+negative+arg,+substract+from+number.
Et+EOB,+look+backward+for+next+number.+"
++(interactive+"*p")
++(let+(i+done)
++++(if+(looking-at+"[0-9]")
++++++++(ar-add-to-number+arg)
++++++(let*+((cf+(char-after))
+++++++++++++(cn+(when+(char-or-string-p+cf)(downcase+cf))))
++++++++(cond+((or+(eobp)(eq+cf+32)(eq+cf+?\+))
+++++++++++++++(when+(<+0+(abs+(skip-chars-backward+"%5E0-9"+(line-beginning-position))))
+++++++++++++++++(forward-char+-1)
+++++++++++++++++(ar-add-to-number+arg)
+++++++++++++++++(setq+done+t)))
++++++++++++++((eq+cf+34)+;;+?\"
+++++++++++++++(setq+cn+"'"))
++++++++++++++((eq+cf+39)+;;+?\'
+++++++++++++++(setq+cn+"\""))
++++++++++++++((eq+cf+43)+;;+?\%2B
+++++++++++++++(setq+cn+"-"))
++++++++++++++((eq+cf+62)+;;+?\>
+++++++++++++++(setq+cn+"<"))
++++++++++++++((eq+cf+60)+;;+?\<
+++++++++++++++(setq+cn+">"))
++++++++++++++((eq+cf+187)+;;+?\»
+++++++++++++++(setq+cn+"«"))
++++++++++++++((eq+cf+171)+;;+?\«
+++++++++++++++(setq+cn+"»"))
++++++++++++++((eq+cf+41)+;;+?\)
+++++++++++++++(setq+cn+"("))
++++++++++++++((eq+cf+40)+;;+?\(
+++++++++++++++(setq+cn+")"))
++++++++++++++((eq+cf+123)
+++++++++++++++(setq+cn+"}"))+
++++++++++++++((eq+cf+125)+
+++++++++++++++(setq+cn+"{"))
++++++++++++++((eq+cf+93)+;;+?\]
+++++++++++++++(setq+cn+"["))
++++++++++++++((eq+cf+91)+;;+?\[
+++++++++++++++(setq+cn+"]"))
++++++++++++++((eq+cf+45)+;;+?\-
+++++++++++++++(setq+cn+"_"))
++++++++++++++((eq+cf+95)+;;+?\_
+++++++++++++++(setq+cn+"-"))
++++++++++++++((eq+cf+92)+;;+?\\
+++++++++++++++(setq+cn+"/"))
++++++++++++++((eq+cf+47)+;;+?\/
+++++++++++++++(setq+cn+"\\"))
++++++++++++++(t+(when+(eq+cf+cn)
+++++++++++++++++++(setq+cn+(upcase+cf)))))
++++++++(unless+done
++++++++++(delete-char+1)
++++++++++(insert+cn))))))|code-block|syntax|javascript|5125227|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

There are some common replacements, for example toggle the case, switch "(" to ")", raise/lower a number. Might be done with the following:

<pre><code>(defun reverse-chars (&amp;optional arg)
 "Reverse reciproke chars as \"[\" to \"]\", upcase or downcase,
Switch `\"' with `''

If over a number, add ARG to it.
With negative arg, substract from number.
Et EOB, look backward for next number. "
 (interactive "*p")
 (let (i done)
 (if (looking-at "[0-9]")
 (ar-add-to-number arg)
 (let* ((cf (char-after))
 (cn (when (char-or-string-p cf)(downcase cf))))
 (cond ((or (eobp)(eq cf 32)(eq cf ?\ ))
 (when (&lt; 0 (abs (skip-chars-backward "^0-9" (line-beginning-position))))
 (forward-char -1)
 (ar-add-to-number arg)
 (setq done t)))
 ((eq cf 34) ;; ?\"
 (setq cn "'"))
 ((eq cf 39) ;; ?\'
 (setq cn "\""))
 ((eq cf 43) ;; ?\+
 (setq cn "-"))
 ((eq cf 62) ;; ?\&gt;
 (setq cn "&lt;"))
 ((eq cf 60) ;; ?\&lt;
 (setq cn "&gt;"))
 ((eq cf 187) ;; ?\»
 (setq cn "«"))
 ((eq cf 171) ;; ?\«
 (setq cn "»"))
 ((eq cf 41) ;; ?\)
 (setq cn "("))
 ((eq cf 40) ;; ?\(
 (setq cn ")"))
 ((eq cf 123)
 (setq cn "}")) 
 ((eq cf 125) 
 (setq cn "{"))
 ((eq cf 93) ;; ?\]
 (setq cn "["))
 ((eq cf 91) ;; ?\[
 (setq cn "]"))
 ((eq cf 45) ;; ?\-
 (setq cn "_"))
 ((eq cf 95) ;; ?\_
 (setq cn "-"))
 ((eq cf 92) ;; ?\\
 (setq cn "/"))
 ((eq cf 47) ;; ?\/
 (setq cn "\\"))
 (t (when (eq cf cn)
 (setq cn (upcase cf)))))
 (unless done
 (delete-char 1)
 (insert cn))))))
</code></pre>

Is it there any function to replace character at point in Emacs Lisp?

Currently what I can do is:

<pre><code>(goto-char pt)
(delete-char 1)
(insert c)
</code></pre>

Replace character at point in Emacs

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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在Emacs Lisp中有没有替换点字符的函数？目前我能做的是：(goto-char pt)(delete-char 1)(insert c)

问替换Emacs中的点字符
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