{"published":"2007-02-08 00:00:01","blog_title":"DOSEI\u306e\u65e5\u8a18","url":"https://dosei.hatenadiary.jp/entry/20070208/p2","author_name":"DOSEI","provider_url":"https://hatena.blog","height":"190","width":"100%","version":"1.0","description":"\u62bd\u8c61\u57fa\u5e95\u30af\u30e9\u30b9 B \u304c\u3042\u3063\u305f\u3068\u3057\u3066\u3001\u30af\u30e9\u30b9 D1, D2 \u304c\u6d3e\u751f\u3057\u3066\u3044\u308b\u3002 \u95a2\u6570 f(D1), f(D2) \u3092\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u5b9a\u7fa9\u3057\u305f\u3068\u304d, f \u306b B \u306e\u5909\u6570\u3092\u6e21\u3057\u3066\u81ea\u52d5\u7684\u306b\u547c\u3070\u308c\u308b\u3082\u306e\u304c\u632f\u308a\u5206\u3051\u3089\u308c\u306a\u3044\u304b\u306a\u30fc\u3068\u601d\u3063\u305f\u3051\u3069\u3001\u3060\u3081\u3060\u3063\u305f\u3002\u3053\u3046\u3044\u3046\u3068\u304d\u306f\u3069\u3046\u3059\u308c\u3070\u3044\u3044\u306e\u304b\u3002 f(B) \u3092\u5b9a\u7fa9\u3057\u3066 is \u3067\u8abf\u3079\u308b\u3057\u304b\u306a\u3044\u306e\u304b\u306a\uff1f\u3082\u3057\u304f\u306f\u3053\u3046\uff1f if(x is D1) f(x as D1); else if(x is D2) f(x as D2); \u3053\u308c\u306f\u3044\u3084\u3060\u306a\u3002\u3053\u3046\u3044\u3046\u3053\u3068\u3092\u3084\u308b\u6a5f\u80fd\u3092, \u30de\u30eb\u30c1\u30e1\u30bd\u30c3\u30c9\u3068\u304b\u591a\u91cd\u30c7\u30a3\u30b9\u30d1\u30c3\u30c1\u3068\u304b\u3044\u3046\u3089\u3057\u3044.","author_url":"https://blog.hatena.ne.jp/DOSEI/","title":" \u30c0\u30a6\u30f3\u30ad\u30e3\u30b9\u30c8\u306b\u3088\u308b\u95a2\u6570\u547c\u3073\u51fa\u3057","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fdosei.hatenadiary.jp%2Fentry%2F20070208%2Fp2\" title=\" \u30c0\u30a6\u30f3\u30ad\u30e3\u30b9\u30c8\u306b\u3088\u308b\u95a2\u6570\u547c\u3073\u51fa\u3057 - DOSEI\u306e\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>","type":"rich","image_url":null,"categories":["\u30e1\u30e2","C#"],"provider_name":"Hatena Blog","blog_url":"https://dosei.hatenadiary.jp/"}