https://ruby-china.org/chyanog en-us <p>example:</p> <pre class="highlight ruby"><code><span class="p">[</span><span class="mi">1</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">1</span><span class="p">]</span> </code></pre> <p>----&gt;</p> <pre class="highlight plaintext"><code>[[1,1,1],[2,2],[3],[1,1]] </code></pre> <p>顺序不能变</p> chyanog Sun, 21 Oct 2012 22:52:22 +0800 https://ruby-china.org/topics/6220 https://ruby-china.org/topics/6220 <p><img src="//l.ruby-china.com/photo/9d644157b7f016e099eaea8840ba68be.png" title="" alt=""></p> <p>见别人用 Java 写的有数十行代码，想看看 ruby 程序员会如何来做。</p> chyanog Sat, 22 Sep 2012 20:07:08 +0800 https://ruby-china.org/topics/5693 https://ruby-china.org/topics/5693 <p>a1=[1,2,3] a2=[4,5,6] a3=[7,8,9] 如何得到 result=[12,15,18] 尽量用 map 之类的写法，不用循环</p> chyanog Thu, 16 Aug 2012 14:46:57 +0800 https://ruby-china.org/topics/4979 https://ruby-china.org/topics/4979 <p>如：1428------&gt; [1,4,2,8]（数组元素需要是整数） 尽量用最简洁的代码实现</p> chyanog Wed, 25 Jul 2012 23:39:20 +0800 https://ruby-china.org/topics/4553 https://ruby-china.org/topics/4553