{"url":"https://www.shigemk2.com/entry/20120409/1333910537","provider_url":"https://hatena.blog","description":"(when \u6761\u4ef6 \u771f\u30d5\u30a9\u30fc\u30e01 \u771f\u30d5\u30a9\u30fc\u30e02 ..) \u6700\u5f8c\u306b\u8a55\u4fa1\u3057\u305f\u771f\u30d5\u30a9\u30fc\u30e0\u30fb\u6761\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u3068\u304d\u306fnil(unless \u6761\u4ef6 \u507d\u30d5\u30a9\u30fc\u30e01 \u507d\u30d5\u30a9\u30fc\u30e02 ..) \u6700\u5f8c\u306b\u8a55\u4fa1\u3057\u305f\u507d\u30d5\u30a9\u30fc\u30e0\u30fb\u6761\u4ef6\u3092\u6e80\u305f\u3057\u305f\u3068\u304d\u306fnil;;; when\u306e\u4e2d\u304c\u5b9f\u884c\u3055\u308c\u308b\u4f8b (let (msg) (when (= 0 (% 6 2)) ;; \u3053\u3053\u306b\u306f\u8907\u6570\u306e\u30d5\u30a9\u30fc\u30e0\u3092\u7f6e\u3051\u308b (setq msg \"6\u306f\u5076\u6570\u3067\u3059\")) msg) ; => \"6\u306f\u5076\u6570\u3067\u3059\" ;;; when\u306e\u4e2d\u304c\u5b9f\u884c\u3055\u308c\u306a\u3044\u4f8b (let (msg) (when (= 1 (% 6 2)) (setq msg \"6\u306f\u5947\u6570\u3067\u3059\")) msg) ; => ni\u2026","image_url":"http://ecx.images-amazon.com/images/I/51Wg39T8KAL.jpg","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.shigemk2.com%2Fentry%2F20120409%2F1333910537\" title=\"when\u3068unless - by shigemk2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","author_url":"https://blog.hatena.ne.jp/shigemk2/","published":"2012-04-09 03:42:17","categories":["Emacs Lisp"],"blog_url":"https://www.shigemk2.com/","provider_name":"Hatena Blog","blog_title":"by shigemk2","type":"rich","version":"1.0","title":"when\u3068unless","author_name":"shigemk2"}