https://ruby-china.org/jhhdoctor en-us <pre class="highlight ruby"><code><span class="no">File</span><span class="p">.</span><span class="nf">open</span> <span class="s2">"/Users/lic/Desktop/3.txt"</span> <span class="k">do</span> <span class="o">|</span><span class="n">f</span><span class="o">|</span> <span class="n">f</span><span class="p">.</span><span class="nf">each_line</span> <span class="k">do</span> <span class="o">|</span><span class="n">line</span><span class="o">|</span> <span class="nb">puts</span> <span class="n">line</span> <span class="k">end</span> <span class="k">end</span> </code></pre> <p>如上代码，我并没有在 File.open 方法中发现 yidle 关键字，为什么可以在这里直接用代码块呢？ 见笑了，请大神指点</p> jhhdoctor Mon, 26 Oct 2015 17:40:32 +0800 https://ruby-china.org/topics/27828 https://ruby-china.org/topics/27828