https://ruby-china.org/lizihao en-us <p>p String.singleton_class.superclass #=&gt; <a rel="nofollow" target="_blank">Class:Object</a></p> <p>p String.superclass.singleton_class #=&gt; <a rel="nofollow" target="_blank">Class:Object</a></p> <p>这两行代码解释 ruby 中类的 eigenclass 的超类就是类的超类对应的 eigenclass</p> <p>可是</p> <p>p BasicObject.superclass.singleton_class #=&gt; NilClass</p> <p>p BasicObject.singleton_class.superclass #=&gt; Class</p> <p>这两行代码怎么解释？</p> lizihao Thu, 23 Feb 2017 15:55:52 +0800 https://ruby-china.org/topics/32368 https://ruby-china.org/topics/32368 <p><img src="https://l.ruby-china.com/photo/2017/4e1644d35141f1cc4959892f7f4030b9.png!large" title="" alt=""> <img src="https://l.ruby-china.com/photo/2017/82cfde83eb12770c64cfbe4ebe4ffe42.png!large" title="" alt=""></p> <p>求大神给我个解释 第一个得出的结果是 111 没毛病 为什么我把 428 行 注释了 结果就变为 222 了？？？</p> lizihao Wed, 08 Feb 2017 11:33:40 +0800 https://ruby-china.org/topics/32266 https://ruby-china.org/topics/32266