{"height":"190","url":"https://morchin.hatenadiary.org/entry/20060604/p1","author_name":"morchin","author_url":"https://blog.hatena.ne.jp/morchin/","image_url":null,"provider_name":"Hatena Blog","width":"100%","title":" \u30dd\u30ea\u30e2\u30eb\u30d5\u30a3\u30ba\u30e0","blog_url":"https://morchin.hatenadiary.org/","categories":["\u4e00\u822c"],"type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmorchin.hatenadiary.org%2Fentry%2F20060604%2Fp1\" title=\" \u30dd\u30ea\u30e2\u30eb\u30d5\u30a3\u30ba\u30e0 - \u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","version":"1.0","published":"2006-06-04 00:00:00","description":"\u3088\u304fOCP(Open-Closed Principle)\u3067\u306eOpen\u306f\u3001\u30dd\u30ea\u30e2\u30eb\u30d5\u30a3\u30ba\u30e0\u304c\u4f8b\u3068\u3057\u3066\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u3002\u3064\u307e\u308a\u3001\u65b0\u305f\u306b\u578b\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u5b9f\u88c5\u3092\u8ffd\u52a0\u3059\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3042\u308b\u3002 \u3057\u304b\u3057\u3001\u79c1\u306f\u305d\u308c\u306f\u3001\u6a5f\u80fd\u8ffd\u52a0\u3092\u610f\u5473\u3059\u308b\u3068\u601d\u3063\u3066\u306a\u3044\u3002\u5358\u306b\u3001\u578b\u306b\u5fdc\u3058\u3066\u5b9f\u88c5\u3092\u5909\u66f4\u3057\u3066\u3044\u308b\u3060\u3051\u3060\u3002 \u578b\u306b\u5fdc\u3058\u3066\u5b9f\u88c5\u3092\u81ea\u52d5\u7684\u306b\u5909\u3048\u308b\u65b9\u6cd5\u306f\u3001\u4eca\u306e\u3068\u3053\u308d\u4ee5\u4e0b\u3092\u601d\u3044\u3064\u3044\u3066\u3044\u308b\u3002\u307e\u3060\u5225\u306e\u3082\u306e\u304c\u3042\u308b\u304b\u306f\u7814\u7a76\u9014\u4e2d\u3067\u3042\u308b\u3002 \u30dd\u30ea\u30e2\u30eb\u30d5\u30a3\u30ba\u30e0 or Duck Typing \u95a2\u6570(or \u6f14\u7b97\u5b50)\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9 template\u306e(\u5b8c\u5168/\u90e8\u5206)\u7279\u6b8a\u5316 \u3053\u306e\u5206\u985e\u304c\u610f\u5473\u3092\u6301\u3064\u304b\u3069\u3046\u304b\u306f\u4e0d\u660e\u3067\u3042\u308b\u304c\u3001\u8003\u3048\u3066\u3044\u308b\u3068\u9762\u767d\u3044\u3002","blog_title":"\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u65e5\u8a18"}