{"version":"1.0","url":"https://uzimith.hateblo.jp/entry/20110702/1309612696","author_url":"https://blog.hatena.ne.jp/uzimith/","author_name":"uzimith","title":"10,16,2\u9032\u6570\u76f8\u4e92\u5909\u63db","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fuzimith.hateblo.jp%2Fentry%2F20110702%2F1309612696\" title=\"10,16,2\u9032\u6570\u76f8\u4e92\u5909\u63db - _blank\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2011-07-02 22:18:16","provider_url":"https://hatena.blog","height":"190","image_url":null,"width":"100%","blog_title":"_blank","blog_url":"https://uzimith.hateblo.jp/","provider_name":"Hatena Blog","type":"rich","description":"irb\u3067\u7c21\u5358\u306b\u5909\u63db\u3067\u304d\u308b\u3068\u4fbf\u5229\u306a\u306e\u3067\u30e1\u30e2\u3002 \uff11\uff10\u9032\u6570\u304b\u3089 Integer#to_s(x)\u3092\u7528\u3044\u308b\u306810\u9032\u6570\u304b\u3089x\u9032\u6570\u306b\u5909\u63db\u3067\u304d\u307e\u3059\u3002 num.to_s(2) #2\u9032\u6570 num.to_s(16) #16\u9032\u6570 \u4ed6\u306b\u3082 \"%b\" % num #2\u9032\u6570 \"%x\" % num #16\u9032\u6570 \u3067\u3053\u306e%\u6587\u6cd5\u7684\u306b\u306a\u3093\u306a\u306e\u304b\u5206\u304b\u3093\u306a\u3044(\u00b4\u30fb\u03c9\u30fb`) 2,16\u9032\u6570\u304b\u3089 \u8fd4\u308a\u5024\u306f10\u9032\u6570\u306a\u306e\u3067\u3002 0xnum #16\u9032\u6570 0num #2\u9032\u6570 \u7d42\u308f\u308a\u306b \u3053\u308c\u3092\u7d44\u307f\u5408\u308f\u305b\u308c\u3070\u8ab0\u3067\u3082\u7c21\u5358\u306b\u306a\u3093\u306b\u3067\u3082\u5909\u63db\u3067\u304d\u308b\u3067\u3057\u3087\u3046(\uff40\u30fb\u03c9\u30fb\u00b4)\uff7c\uff6c\uff77\uff70\uff9dirb\u95a2\u6570\u96fb\u5353\u4fbf\u5229\u3059\u304e\u308f\u308d\u305f\u3002","categories":["Ruby"]}