Ruby\u306e\u52c9\u5f37\u3092\u521d\u3081\u3066\u304b\u3089\u3001\u305f\u3060\u3044\u307e\u30d1\u30fc\u30d5\u30a7\u30af\u30c8Ruby\u3068\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9eRuby\u3068\u3044\u3046\u66f8\u7c4d\u3092\u4e26\u884c\u3057\u3066\u9032\u3081\u308b\u30ab\u30cb\u30d0\u30b5\u30df\u52c9\u5f37\u4e2d\u3002\u3053\u306e2\u518a\u3092\u540c\u6642\u306b\u9032\u3081\u3066\u307f\u3066\u6c17\u306b\u306a\u3063\u305f\u3068\u3053\u3084\u3089\u3092\u3042\u308c\u3053\u308c\u30c4\u30e9\u30c4\u30e9\u3068\u66f8\u3044\u3066\u307f\u308b\u30d1\u30fc\u30c8\uff13\u3067\u3054\u3056\u3093\u3059\u3002<\/p>\n
<\/p>\n
\u25cf\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3067\u304d\u306a\u3044
\n\u5fd8\u5099\u9332\u7684\u306a\u610f\u5473\u3067\u66f8\u3044\u3066\u304a\u3053\u3046\u3002\u3044\u3064\u4f7f\u3046\u306e\u304b\u308f\u304b\u3089\u3093\u3051\u3069\u3002
\n\u25cf\u7d99\u627f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u3002
\n\u30af\u30e9\u30b9\u3068\u9055\u3063\u3066\u301c\u3001\u3068\u3044\u3046\u4e8b\u3060\u306d\u3002<\/p>\n
\u25cf\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u30ec\u30b7\u30fc\u30d0\u306b\u3057\u3066\u547c\u3073\u51fa\u3059<\/p>\n
irb(main):005:0> Math.sqrt(2)\r\n=> 1.4142135623730951<\/pre>\n\u25cfInclude\u3059\u308b\u3002<\/p>\n
irb(main):008:0> include Math\r\n=> Object\r\nirb(main):009:0> sqrt(2)\r\n=> 1.4142135623730951<\/pre>\n\u30fbautoload\u306f\u6307\u5b9a\u3057\u305f\u30e2\u30b8\u30e5\u30fc\u30eb\u3001\u30af\u30e9\u30b9\u304c\u6700\u521d\u306b\u53c2\u7167\u3055\u308c\u305f\u6642\u306b\u81ea\u52d5\u7684\u306brequire\u3055\u308c\u308b\u3002<\/h2>\n
\u540d\u524d\u304b\u3089\u3059\u308b\u3068\u30d7\u30ed\u30b0\u30e9\u30e0\u5b9f\u884c\u6642\u306bload\u3055\u308c\u305d\u3046\u306a\u3001\u540d\u524d\u306e\u5370\u8c61\u304b\u3089\u3057\u3066\u52b9\u679c\u3092\u9593\u9055\u3048\u305d\u3046\u306a\u306e\u3060\u3051\u308c\u3069\u3001\u5b9f\u884c\u6642\u306bload\u3059\u308b\u306e\u3063\u3066require\u3084\u3093\uff1f\u3068\u51b7\u9759\u306b\u8003\u3048\u308c\u3070\u3069\u3046\u3068\u3044\u3046\u3053\u3068\u306f\u306a\u3044\u3002\u3063\u3066\u304b\u3002<\/p>\n
\u30fb\u30af\u30e9\u30b9\u306f<\/p>\n
\u30af\u30e9\u30b9\u306f\u3060\u3044\u305f\u3044Object\u30af\u30e9\u30b9\u304b\u3089\u6d3e\u751f\u3057\u305f\u30b5\u30d6\u30af\u30e9\u30b9\u3002\u5b9a\u7fa9\u3057\u305f\u30af\u30e9\u30b9\u3082\u30b9\u30fc\u30d1\u30fc\u30af\u30e9\u30b9\u3092\u5b9a\u7fa9\u3057\u306a\u304b\u3063\u305f\u5834\u5408\u306f\u3001\u81ea\u52d5\u7684\u306bObject\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3059\u308b\u3002<\/p>\n
\r\nirb(main):025:0* hoge = 'a'\r\n=> "a"\r\nirb(main):026:0> hoge.class\r\n=> String\r\nirb(main):027:0> hoge.class.superclass\r\n=> Object\r\n\r\nirb(main):028:0> hoge = 1\r\n=> 1\r\nirb(main):029:0> hoge.class\r\n=> Fixnum\r\nirb(main):030:0> hoge.class.superclass\r\n=> Integer\r\nirb(main):031:0> hoge.class.superclass.superclass\r\n=> Numeric\r\nirb(main):032:0> hoge.class.superclass.superclass.superclass\r\n=> Object\r\n\r\nirb(main):002:0> Array.class.superclass\r\n=> Module\r\nirb(main):003:0> Array.class.superclass.superclass\r\n=> Object\r\n\r\nirb(main):010:0> Range.class.superclass.superclass\r\n=> Object\r\n\r\nirb(main):012:0* SyntaxError.superclass.superclass\r\n=> Exception\r\nirb(main):013:0> SyntaxError.superclass.superclass.superclass\r\n=> Object\r\n\r\nirb(main):001:0> class Hoge\r\nirb(main):002:1> end\r\n=> nil\r\nirb(main):003:0> Hoge.superclass\r\n=> Object\r\n<\/pre>\n\u30fb\u30ad\u30fc\u30ef\u30fc\u30c9\u30ea\u30c6\u30e9\u30eb<\/h2>\n
irb(main):001:0> nil\r\n=> nil\r\nirb(main):002:0> true\r\n=> true\r\nirb(main):003:0> false\r\n=> false\r\nirb(main):004:0> self\r\n=> main\r\nirb(main):006:0> __FILE__\r\n=> "(irb)"\r\nirb(main):007:0> __LINE__\r\n=> 7\r\nirb(main):008:0> __ENCODING__\r\n=> #<Encoding:UTF-8> <\/pre>\n\u4eca\u56de\u306f\u3053\u308c\u304f\u3089\u3044\u3067\u3059\u304b\u306d\u3002<\/p>\n
\u5168\u7136\u95a2\u4fc2\u306e\u306a\u3044\u8a71\u3067\u3059\u3051\u308c\u3069\u3001RSS\u3092\u6d41\u3057\u898b\u3057\u3066\u3044\u308b\u6642\u306b\u8aad\u3080\u304b\u8aad\u307e\u306a\u3044\u304b\u306f\u57fa\u672c\u7684\u306b\u30bf\u30a4\u30c8\u30eb\u3067\u5224\u65ad\u3057\u3066\u3044\u308b\u3002\u305d\u308c\u306f\u81ea\u5206\u81ea\u8eab\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u3082\u8a00\u3048\u308b\u3053\u3068\u3063\u3066\u3053\u3068\u3060\u3002<\/p>\n