{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnobuhisa.hatenablog.jp%2Fentry%2F20090201%2F1233440914\" title=\"variable capture - Nobuhisa&#39;s diary\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["LISP"],"blog_title":"Nobuhisa's diary","author_name":"Nobuhisa","blog_url":"https://nobuhisa.hatenablog.jp/","height":"190","url":"https://nobuhisa.hatenablog.jp/entry/20090201/1233440914","provider_name":"Hatena Blog","width":"100%","title":"variable capture","image_url":null,"type":"rich","provider_url":"https://hatena.blog","version":"1.0","author_url":"https://blog.hatena.ne.jp/Nobuhisa/","published":"2009-02-01 07:28:34","description":"\u30de\u30af\u30ed\u306e\uff08\u610f\u56f3\u305b\u306c\uff09\u5909\u6570\u6355\u6349\u306b\u3064\u3044\u3066\u3002 \u30b1\u30fc\u30b91 : \u5f15\u6570\u304c\u3046\u3042\u3042\uff01 \u3063\u3066\u306a\u308b ;; \u3053\u3093\u306a\u30de\u30af\u30ed\u3092\u5b9a\u7fa9\u3057\u305f\u3068\u3059\u308b CL-USER> (defmacro swap (var1 var2) `(let ((temp ,var1)) (setq ,var1 ,var2) (setq ,var2 temp) )) SWAP CL-USER> (setq a 10 b 20) 20 CL-USER> (swap a b) 10 CL-USER> (list a b) (20 10) ;; \u3084\u3063\u305f\u305c\uff01 ;; \u307e\u305f\u5165\u308c\u66ff\u3048\u3066\u3084\u308b\u305c\uff01 CL-USER> (setq temp 10 temp2 20) 20 \u2026"}