https://ruby-china.org/justme0 en-us <p>如题，Array#index 方法是从头到尾遍历的，现在要从某个特定位置开始找某个元素，是否有办法呢？最坏的办法是自己写循环，从某个位置开始找。</p> justme0 Fri, 26 Feb 2016 21:19:04 +0800 https://ruby-china.org/topics/29121 https://ruby-china.org/topics/29121