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href="/developer/doc/1201" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon" style="background-image:url('https://main.qcloudimg.com/raw/5c5afe657e4cd0cab6601b5bb1ec9272.png')"></i><span class="c-tree-text">React</span></div></a></li><li id="doc.1202" class="c-tree-item"><a href="/developer/doc/1202" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon" style="background-image:url('https://main.qcloudimg.com/raw/5c5afe657e4cd0cab6601b5bb1ec9272.png')"></i><span class="c-tree-text">React native</span></div></a></li><li id="doc.1203" class="c-tree-item"><a href="/developer/doc/1203" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon" style="background-image:url('https://main.qcloudimg.com/raw/23bd9465961c415348ddffae0ee80849.png')"></i><span class="c-tree-text">Redis</span></div></a></li><li id="doc.1204" class="c-tree-item"><a href="/developer/doc/1204" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon" style="background-image:url('https://main.qcloudimg.com/raw/aac9c7da445187766d7b8974a4478a79.png')"></i><span class="c-tree-text">Redux</span></div></a></li><li id="doc.1211" class="c-tree-item"><a href="/developer/doc/1211" class="c-tree-title tree-open"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon" style="background-image:url('https://main.qcloudimg.com/raw/b0da03eeec7c332e2b9615934a2d957e.png')"></i><span class="c-tree-text">Ruby 2.4</span></div></a><ul class="c-tree c-tree-level2"><li id="chapter.16404-doc.1211" class="c-tree-item"><a href="/developer/chapter/16404" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">缩略 | Abbrev</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16405-doc.1211" class="c-tree-item"><a href="/developer/chapter/16405" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">ARGF</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16406-doc.1211" class="c-tree-item"><a href="/developer/chapter/16406" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">数组 | Array</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16407-doc.1211" class="c-tree-item"><a href="/developer/chapter/16407" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Base64</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16408-doc.1211" class="c-tree-item"><a href="/developer/chapter/16408" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">基本对象 | BasicObject</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16409-doc.1211" class="c-tree-item"><a href="/developer/chapter/16409" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">基准测试 | Benchmark</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16410-doc.1211" class="c-tree-item"><a href="/developer/chapter/16410" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">BigDecimal</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16411-doc.1211" class="c-tree-item"><a href="/developer/chapter/16411" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">绑定 | Binding</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16412-doc.1211" class="c-tree-item"><a href="/developer/chapter/16412" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">CGI</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16413-doc.1211" class="c-tree-item"><a href="/developer/chapter/16413" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">类 | Class</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16414-doc.1211" class="c-tree-item"><a href="/developer/chapter/16414" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">比较 | Comparable</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16415-doc.1211" class="c-tree-item"><a href="/developer/chapter/16415" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">负责 | Complex</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16416-doc.1211" class="c-tree-item"><a href="/developer/chapter/16416" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">计算续体 | Continuation</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16417-doc.1211" class="c-tree-item"><a href="/developer/chapter/16417" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">覆盖 | Coverage</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16418-doc.1211" class="c-tree-item"><a href="/developer/chapter/16418" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">CSV</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16419-doc.1211" class="c-tree-item"><a href="/developer/chapter/16419" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">日期 | Date</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16420-doc.1211" class="c-tree-item"><a href="/developer/chapter/16420" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">日期时间 | DateTime</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16421-doc.1211" class="c-tree-item"><a href="/developer/chapter/16421" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">DBM</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16422-doc.1211" class="c-tree-item"><a href="/developer/chapter/16422" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">代理 | Delegator</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16423-doc.1211" class="c-tree-item"><a href="/developer/chapter/16423" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">摘要 | Digest</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16424-doc.1211" class="c-tree-item"><a href="/developer/chapter/16424" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Dir</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16425-doc.1211" class="c-tree-item"><a href="/developer/chapter/16425" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">DRb</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16426-doc.1211" class="c-tree-item"><a href="/developer/chapter/16426" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">编码 | Encoding</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16427-doc.1211" class="c-tree-item"><a href="/developer/chapter/16427" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">枚举 | Enumerable</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16428-doc.1211" class="c-tree-item"><a href="/developer/chapter/16428" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">枚举 | Enumerator</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16429-doc.1211" class="c-tree-item"><a href="/developer/chapter/16429" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">ENV</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16430-doc.1211" class="c-tree-item"><a href="/developer/chapter/16430" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">ERB</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16431-doc.1211" class="c-tree-item"><a href="/developer/chapter/16431" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">错误 | Errors</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16432-doc.1211" class="c-tree-item"><a href="/developer/chapter/16432" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Etc</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16433-doc.1211" class="c-tree-item"><a href="/developer/chapter/16433" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">期望值 | Exception</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16434-doc.1211" class="c-tree-item"><a href="/developer/chapter/16434" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">错误类 | FalseClass</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16435-doc.1211" class="c-tree-item"><a href="/developer/chapter/16435" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Fiber</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16436-doc.1211" class="c-tree-item"><a href="/developer/chapter/16436" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Fiddle</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16437-doc.1211" class="c-tree-item"><a href="/developer/chapter/16437" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">文件 | File</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16438-doc.1211" class="c-tree-item"><a href="/developer/chapter/16438" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">文件实用程序 | FileUtils</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16439-doc.1211" class="c-tree-item"><a href="/developer/chapter/16439" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">查找 | Find</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16440-doc.1211" class="c-tree-item"><a href="/developer/chapter/16440" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">浮点 | Float</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16441-doc.1211" class="c-tree-item"><a href="/developer/chapter/16441" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Forwardable</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16442-doc.1211" class="c-tree-item"><a href="/developer/chapter/16442" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">GC</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16443-doc.1211" class="c-tree-item"><a href="/developer/chapter/16443" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">GDBM</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16444-doc.1211" class="c-tree-item"><a href="/developer/chapter/16444" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">GetoptLong</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16446-doc.1211" class="c-tree-item"><a href="/developer/chapter/16446" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Hash</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16447-doc.1211" class="c-tree-item"><a href="/developer/chapter/16447" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Integer</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16448-doc.1211" class="c-tree-item"><a href="/developer/chapter/16448" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">IO</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16449-doc.1211" class="c-tree-item"><a href="/developer/chapter/16449" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">IPAddr</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16450-doc.1211" class="c-tree-item"><a href="/developer/chapter/16450" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">JSON</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16451-doc.1211" class="c-tree-item"><a href="/developer/chapter/16451" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Kernel</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16452-doc.1211" class="c-tree-item"><a href="/developer/chapter/16452" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">语言 | 3Language</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16453-doc.1211" class="c-tree-item"><a href="/developer/chapter/16453" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">记录 | Logger</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16454-doc.1211" class="c-tree-item"><a href="/developer/chapter/16454" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">编排 | Marshal</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16455-doc.1211" class="c-tree-item"><a href="/developer/chapter/16455" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">MatchData</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16456-doc.1211" class="c-tree-item"><a href="/developer/chapter/16456" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">数学 | Math</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16457-doc.1211" class="c-tree-item"><a href="/developer/chapter/16457" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">矩阵 | Matrix</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16458-doc.1211" class="c-tree-item"><a href="/developer/chapter/16458" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">方法 | Method</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16459-doc.1211" class="c-tree-item"><a href="/developer/chapter/16459" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">模型 | Module</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16460-doc.1211" class="c-tree-item"><a href="/developer/chapter/16460" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">监控 | Monitor</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16461-doc.1211" class="c-tree-item"><a href="/developer/chapter/16461" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text"> 互斥 | Mutex</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16462-doc.1211" class="c-tree-item"><a href="/developer/chapter/16462" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Net</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16463-doc.1211" class="c-tree-item"><a href="/developer/chapter/16463" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Net::FTP</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16464-doc.1211" class="c-tree-item"><a href="/developer/chapter/16464" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Net::HTTP</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16465-doc.1211" class="c-tree-item"><a href="/developer/chapter/16465" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Net::IMAP</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16466-doc.1211" class="c-tree-item"><a href="/developer/chapter/16466" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Net::SMTP</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16467-doc.1211" class="c-tree-item"><a href="/developer/chapter/16467" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">NilClass</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16468-doc.1211" class="c-tree-item"><a href="/developer/chapter/16468" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">数字 | Numeric</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16469-doc.1211" class="c-tree-item"><a href="/developer/chapter/16469" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">对象 | Object</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16470-doc.1211" class="c-tree-item"><a href="/developer/chapter/16470" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">ObjectSpace</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16471-doc.1211" class="c-tree-item"><a href="/developer/chapter/16471" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Observable</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16472-doc.1211" class="c-tree-item"><a href="/developer/chapter/16472" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Open3</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16473-doc.1211" class="c-tree-item"><a href="/developer/chapter/16473" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">OpenSSL</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16474-doc.1211" class="c-tree-item"><a href="/developer/chapter/16474" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">OpenStruct</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16475-doc.1211" class="c-tree-item"><a href="/developer/chapter/16475" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">OpenURI</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/chapter/16476" class="c-tree-title tree-hover tree-actived tree-open"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser</span></div></a><ul class="c-tree c-tree-level3"><li id="section.1379843-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379843" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser</span></div></a></li><li id="section.1379895-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379895" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::AC</span></div></a></li><li id="section.1379900-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379900" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::Acceptables</span></div></a></li><li id="section.1379901-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379901" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::AmbiguousArgument</span></div></a></li><li id="section.1379902-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379902" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::AmbiguousOption</span></div></a></li><li id="section.1379903-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379903" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::Arguable</span></div></a></li><li id="section.1379912-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379912" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::CompletingHash</span></div></a></li><li id="section.1379914-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379914" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::Completion</span></div></a></li><li id="section.1379923-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379923" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::InvalidArgument</span></div></a></li><li id="section.1379924-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379924" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::InvalidOption</span></div></a></li><li id="section.1379925-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379925" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::List</span></div></a></li><li id="section.1379940-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379940" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::MissingArgument</span></div></a></li><li id="section.1379941-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379941" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::NeedlessArgument</span></div></a></li><li id="section.1379943-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379943" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::OptionMap</span></div></a></li><li id="section.1379944-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379944" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::ParseError</span></div></a></li><li id="section.1379958-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379958" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::Switch</span></div></a></li><li id="section.1379973-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379973" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::Switch::NoArgument</span></div></a></li><li id="section.1379977-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379977" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::Switch::OptionalArgument</span></div></a></li><li id="section.1379980-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379980" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::Switch::PlacedArgument</span></div></a></li><li id="section.1379982-chapter.16476-doc.1211" class="c-tree-item"><a href="/developer/section/1379982" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-icon"></i><span class="c-tree-text">OptionParser::Switch::RequiredArgument</span></div></a></li></ul></li><li id="chapter.16477-doc.1211" class="c-tree-item"><a href="/developer/chapter/16477" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">路径名 | Pathname</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16478-doc.1211" class="c-tree-item"><a href="/developer/chapter/16478" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">完整输出 | PrettyPrint</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16479-doc.1211" class="c-tree-item"><a href="/developer/chapter/16479" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Prime</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16480-doc.1211" class="c-tree-item"><a href="/developer/chapter/16480" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Proc</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16481-doc.1211" class="c-tree-item"><a href="/developer/chapter/16481" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">过程 | Process</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16482-doc.1211" class="c-tree-item"><a href="/developer/chapter/16482" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">PStore</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16483-doc.1211" class="c-tree-item"><a href="/developer/chapter/16483" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">PTY</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16484-doc.1211" class="c-tree-item"><a href="/developer/chapter/16484" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">队列 | Queue</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16485-doc.1211" class="c-tree-item"><a href="/developer/chapter/16485" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">随机 | Random</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16486-doc.1211" class="c-tree-item"><a href="/developer/chapter/16486" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">范围 | Range</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16487-doc.1211" class="c-tree-item"><a href="/developer/chapter/16487" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">合理的 | Rational</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16488-doc.1211" class="c-tree-item"><a href="/developer/chapter/16488" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Readline</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16489-doc.1211" class="c-tree-item"><a href="/developer/chapter/16489" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Regexp</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16490-doc.1211" class="c-tree-item"><a href="/developer/chapter/16490" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Resolv</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16491-doc.1211" class="c-tree-item"><a href="/developer/chapter/16491" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Ripper</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16492-doc.1211" class="c-tree-item"><a href="/developer/chapter/16492" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">RubyVM</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16493-doc.1211" class="c-tree-item"><a href="/developer/chapter/16493" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Scanf</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16494-doc.1211" class="c-tree-item"><a href="/developer/chapter/16494" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">SDBM</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16495-doc.1211" class="c-tree-item"><a href="/developer/chapter/16495" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">SecureRandom</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16496-doc.1211" class="c-tree-item"><a href="/developer/chapter/16496" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Set</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16497-doc.1211" class="c-tree-item"><a href="/developer/chapter/16497" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Shell</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16498-doc.1211" class="c-tree-item"><a href="/developer/chapter/16498" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">信号 | Signal</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16499-doc.1211" class="c-tree-item"><a href="/developer/chapter/16499" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">Singleton</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16500-doc.1211" class="c-tree-item"><a href="/developer/chapter/16500" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">套接字 | Socket</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16501-doc.1211" class="c-tree-item"><a href="/developer/chapter/16501" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">字符串 | String</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16502-doc.1211" class="c-tree-item"><a href="/developer/chapter/16502" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">StringIO</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16503-doc.1211" class="c-tree-item"><a href="/developer/chapter/16503" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">StringScanner</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16504-doc.1211" class="c-tree-item"><a href="/developer/chapter/16504" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">结构 | Struct</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16505-doc.1211" class="c-tree-item"><a href="/developer/chapter/16505" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">符号 | Symbol</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16506-doc.1211" class="c-tree-item"><a href="/developer/chapter/16506" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">同步 | Sync</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16508-doc.1211" class="c-tree-item"><a href="/developer/chapter/16508" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text"> 系统日志 | Syslog</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16509-doc.1211" class="c-tree-item"><a href="/developer/chapter/16509" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text"> 临时文件 | Tempfile</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16510-doc.1211" class="c-tree-item"><a href="/developer/chapter/16510" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">线 | Thread</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16511-doc.1211" class="c-tree-item"><a href="/developer/chapter/16511" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">时间 | Time</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16512-doc.1211" class="c-tree-item"><a href="/developer/chapter/16512" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">时间耗尽 | Timeout</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16513-doc.1211" class="c-tree-item"><a href="/developer/chapter/16513" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">追踪点 | TracePoint</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16514-doc.1211" class="c-tree-item"><a href="/developer/chapter/16514" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">追踪 | Tracer</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16515-doc.1211" class="c-tree-item"><a href="/developer/chapter/16515" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">实类 | TrueClass</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16516-doc.1211" class="c-tree-item"><a href="/developer/chapter/16516" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">TSort</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16517-doc.1211" class="c-tree-item"><a href="/developer/chapter/16517" class="c-tree-title"><div class="c-tree-title-inner"><i class="c-tree-arrow"></i><i class="c-tree-icon"></i><span class="c-tree-text">UnboundMethod</span></div></a><ul class="c-tree c-tree-level3"></ul></li><li id="chapter.16518-doc.1211" class="c-tree-item"><a href="/developer/chapter/16518" 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