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import{P as e,f as t,h as n}from"./runtime-core.esm-bundler-CZvn3YaB.js";import{t as r}from"./plugin-vue_export-helper-CxTVcLa7.js";var i=JSON.parse(`{"path":"/article/ecxnxxd0/","title":"如何使用 frontmatter | 博客","lang":"zh-CN","frontmatter":{"title":"如何使用 frontmatter","createTime":"2024/09/18 09:19:36","permalink":"/article/ecxnxxd0/","description":"说明 本文 翻译 Introduction to YAML 的部分内容。 用于简单说明如何在 markdown 文件中使用 frontmatter。 如果您具有良好的英语阅读基础，为避免翻译可能存在的内容失真，建议您阅读原文。 原文地址： https://dev.to/paulasantamaria/introduction-to-yaml-125f 。","head":[["script",{"type":"application/ld+json"},"{\\"@context\\":\\"https://schema.org\\",\\"@type\\":\\"Article\\",\\"headline\\":\\"如何使用 frontmatter\\",\\"image\\":[\\"\\"],\\"dateModified\\":\\"2026-03-05T07:34:11.000Z\\",\\"author\\":[]}"],["meta",{"property":"og:url","content":"https://theme-plume.vuejs.press/article/ecxnxxd0/"}],["meta",{"property":"og:site_name","content":"Plume 主题"}],["meta",{"property":"og:title","content":"如何使用 frontmatter"}],["meta",{"property":"og:description","content":"说明 本文 翻译 Introduction to YAML 的部分内容。 用于简单说明如何在 markdown 文件中使用 frontmatter。 如果您具有良好的英语阅读基础，为避免翻译可能存在的内容失真，建议您阅读原文。 原文地址： https://dev.to/paulasantamaria/introduction-to-yaml-125f 。"}],["meta",{"property":"og:type","content":"article"}],["meta",{"property":"og:locale","content":"zh-CN"}],["meta",{"property":"og:locale:alternate","content":"en-US"}],["meta",{"property":"og:updated_time","content":"2026-03-05T07:34:11.000Z"}],["meta",{"property":"article:modified_time","content":"2026-03-05T07:34:11.000Z"}],["link",{"rel":"alternate","hreflang":"en-us","href":"https://theme-plume.vuejs.press/en/article/ecxnxxd0/"}]]},"readingTime":{"minutes":4.64,"words":1393},"git":{"createdTime":1726666421000,"updatedTime":1772696051000,"contributors":[{"name":"pengzhanbo","username":"pengzhanbo","email":"volodymyr@foxmail.com","commits":3,"avatar":"https://avatars.githubusercontent.com/pengzhanbo?v=4","url":"https://github.com/pengzhanbo"}],"changelog":[{"hash":"9b9f8f3f77f8ec801e99e9aad8555bab2244dc63","time":1772696051000,"email":"volodymyr@foxmail.com","author":"pengzhanbo","message":"style: lint fix"},{"hash":"4d2361a7046214fe0f4e4af01831107fd00e38ad","time":1759849989000,"email":"volodymyr@foxmail.com","author":"pengzhanbo","message":"feat(theme)!: add collections support (#704)"},{"hash":"89b2601ec706b75dc438178c4226fa1650cc5aa5","time":1726666421000,"email":"volodymyr@foxmail.com","author":"pengzhanbo","message":"docs: improve docs (#192)"}]},"autoDesc":true,"filePathRelative":"blog/4.教程/frontmatter.md","headers":[],"categoryList":[{"id":"65f30c","sort":4,"name":"教程"}],"bulletin":false}`),a={name:`frontmatter.md`};function o(r,i,a,o,s,c){return e(),t(`div`,null,[...i[0]||=[n(`<div class="hint-container info"><p class="hint-container-title">说明</p><p>本文 翻译 <a href="https://dev.to/paulasantamaria/introduction-to-yaml-125f" target="_blank" rel="noopener noreferrer">Introduction to YAML</a> 的部分内容。 用于简单说明如何在 markdown 文件中使用 frontmatter。</p><p>如果您具有良好的英语阅读基础，为避免翻译可能存在的内容失真，建议您阅读原文。</p><p>原文地址： <a href="https://dev.to/paulasantamaria/introduction-to-yaml-125f" target="_blank" rel="noopener noreferrer">https://dev.to/paulasantamaria/introduction-to-yaml-125f</a> 。</p></div><h2 id="介绍" tabindex="-1"><a class="header-anchor" href="#介绍"><span>介绍</span></a></h2><p>YAML 是一种数据序列化语言，通常用于配置文件，例如 <a href="https://github.com/OAI/OpenAPI-Specification/blob/master/examples/v2.0/yaml/api-with-examples.yaml" target="_blank" rel="noopener noreferrer">Open API 规范</a> 或 <a href="https://docs.gitlab.com/ee/ci/yaml/" target="_blank" rel="noopener noreferrer">CI/CD 管道</a>。</p><div class="hint-container note"><p class="hint-container-title">有趣的事实！🤓</p><p>根据 <a href="https://yaml.org/spec/history/2001-05-26.html" target="_blank" rel="noopener noreferrer">YAML 1.0 规范文档 （2001-05-26）</a> 首字母缩略词 “YAML” 代表 “Yet Another Markup Language”， 但后来在 <a href="https://yaml.org/spec/history/2002-04-07.html" target="_blank" rel="noopener noreferrer">2002-04-07 规范</a> 中更改为递归首字母缩略词“YAML Ain&#39;t Markup Language”。</p></div><p>正如最新规范中所述，<strong>YAML</strong> 旨在 <strong>对处理数据的人友好</strong>，并通过 <strong>最大限度地减少结构字符的使用来实现“独特的干净度”</strong>， 允许数据以自然和有意义的方式显示。</p><p>最新规范还指出，YAML <em>1.2 作为官方子集符合 JSON</em> ，这意味着大多数 JSON 文档都可以解析为 YAML。</p><p>YAML 通过使用基于缩进的范围界定（类似于 Python）轻松检查数据结构。</p><div class="hint-container note"><p class="hint-container-title">另一个有趣的事实！🤓</p><p>DEV.to 文章使用 YAML 来定义自定义变量，如标题、描述、标签等。</p></div><h2 id="基本语法" tabindex="-1"><a class="header-anchor" href="#基本语法"><span>基本语法</span></a></h2><p>YAML 文档基本上是 <strong>键值对的集合</strong>，其中值可以像字符串一样简单，也可以像树一样复杂。</p><p>以下是有关 YAML 语法的一些说明：</p><ul><li><strong>缩进用于表示结构</strong>。不允许使用制表符，只要子节点的缩进量比父节点大，空格的数量就无关紧要。</li><li>允许使用 UTF-8、UTF-16 和 UTF-32 编码。</li></ul><h3 id="字符串" tabindex="-1"><a class="header-anchor" href="#字符串"><span>字符串</span></a></h3><div class="language-md line-numbers-mode" data-highlighter="shiki" data-ext="md" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-md"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># 字符串不需要引号：</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">title</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> Introduction to YAML</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># 但你仍可使用它们：</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">title-w-quotes</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;"> &#39;</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">Introduction to YAML</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;">&#39;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># 多行字符串以 | 开头</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">execute</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#1E754F;--shiki-dark:#4D9375;"> |</span></span>
<span class="line"><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> npm ci</span></span>
<span class="line"><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> npm build</span></span>
<span class="line"><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> npm test</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>上面的代码将转换为 JSON 为：</p><div class="language-json" data-highlighter="shiki" data-ext="json" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-json"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">{</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">title</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;"> &quot;</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">Introduction to YAML</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">,</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">title-w-quotes</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;"> &quot;</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">Introduction to YAML</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">,</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">execute</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;"> &quot;</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">npm ci</span><span style="--shiki-light:#A65E2B;--shiki-dark:#C99076;">\\n</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">npm build</span><span style="--shiki-light:#A65E2B;--shiki-dark:#C99076;">\\n</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">npm test</span><span style="--shiki-light:#A65E2B;--shiki-dark:#C99076;">\\n</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;">&quot;</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">}</span></span></code></pre></div><h3 id="数字" tabindex="-1"><a class="header-anchor" href="#数字"><span>数字</span></a></h3><div class="language-md line-numbers-mode" data-highlighter="shiki" data-ext="md" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-md"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># 整数：</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">age</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#2F798A;--shiki-dark:#4C9A91;"> 29</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># 浮点数：</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">price</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#2F798A;--shiki-dark:#4C9A91;"> 15.99</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># 科学计数法：</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">population</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#2F798A;--shiki-dark:#4C9A91;"> 2.89e+6</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>上面的代码将转换为 JSON 为：</p><div class="language-json" data-highlighter="shiki" data-ext="json" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-json"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">{</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">age</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#2F798A;--shiki-dark:#4C9A91;"> 29</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">,</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">price</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#2F798A;--shiki-dark:#4C9A91;"> 15.99</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">,</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">population</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#2F798A;--shiki-dark:#4C9A91;"> 2890000</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">}</span></span></code></pre></div><h3 id="布尔值" tabindex="-1"><a class="header-anchor" href="#布尔值"><span>布尔值</span></a></h3><div class="language-md" data-highlighter="shiki" data-ext="md" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-md"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># 布尔值可以有不同的表示方式：</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">published</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#1E754F;--shiki-dark:#4D9375;"> false</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">published</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#1E754F;--shiki-dark:#4D9375;"> False</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">published</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#1E754F;--shiki-dark:#4D9375;"> FALSE</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span></code></pre></div><p>以上所有内容都将转换为 JSON，如下所示：</p><div class="language-json" data-highlighter="shiki" data-ext="json" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-json"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">{</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">published</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#1E754F;--shiki-dark:#4D9375;"> false</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">}</span></span></code></pre></div><h3 id="null-值" tabindex="-1"><a class="header-anchor" href="#null-值"><span>Null 值</span></a></h3><div class="language-md" data-highlighter="shiki" data-ext="md" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-md"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># Null 值可以通过不设置值来表示：</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">null-value</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># 或者更明确地说：</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">null-value</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#AB5959;--shiki-dark:#CB7676;"> null</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">null-value</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#AB5959;--shiki-dark:#CB7676;"> NULL</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">null-value</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#AB5959;--shiki-dark:#CB7676;"> Null</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span></code></pre></div><p>以上所有内容都将转换为 JSON，如下所示：</p><div class="language-json" data-highlighter="shiki" data-ext="json" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-json"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">{</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">null-value</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#1E754F;--shiki-dark:#4D9375;"> null</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">}</span></span></code></pre></div><h3 id="日期和时间戳" tabindex="-1"><a class="header-anchor" href="#日期和时间戳"><span>日期和时间戳</span></a></h3><p>可以使用 ISO 格式的日期，如下所示：</p><div class="language-md" data-highlighter="shiki" data-ext="md" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-md"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">date</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#A65E2B;--shiki-dark:#C99076;"> 2002-12-14</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">canonical</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#A65E2B;--shiki-dark:#C99076;"> 2001-12-15T02:59:43.1Z</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">iso8601</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#A65E2B;--shiki-dark:#C99076;"> 2001-12-14t21:59:43.10-05:00</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">spaced</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> 2001-12-14 21:59:43.10 -5</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span></code></pre></div><h3 id="sequences-序列" tabindex="-1"><a class="header-anchor" href="#sequences-序列"><span>Sequences 序列</span></a></h3><p>序列允许我们在 YAML 中定义列表：</p><div class="language-md line-numbers-mode" data-highlighter="shiki" data-ext="md" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-md"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># 使用连字符的数字列表：</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">numbers</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;"> -</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> one</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;"> -</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> two</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;"> -</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> three</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># 内联版本：</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">numbers</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#999999;--shiki-dark:#666666;"> [</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> one</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">,</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> two</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">,</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> three</span><span style="--shiki-light:#999999;--shiki-dark:#666666;"> ]</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>上述两个序列都将解析为 JSON，如下所示：</p><div class="language-json" data-highlighter="shiki" data-ext="json" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-json"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">{</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">numbers</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#999999;--shiki-dark:#666666;"> [</span></span>
<span class="line"><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;"> &quot;</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">one</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">,</span></span>
<span class="line"><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;"> &quot;</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">two</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">,</span></span>
<span class="line"><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;"> &quot;</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">three</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;">&quot;</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;"> ]</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">}</span></span></code></pre></div><h3 id="嵌套值" tabindex="-1"><a class="header-anchor" href="#嵌套值"><span>嵌套值</span></a></h3><p>我们可以使用上述所有类型来创建具有嵌套值的对象，如下所示：</p><div class="language-md line-numbers-mode" data-highlighter="shiki" data-ext="md" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-md"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># 一九八四小说数据。</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">nineteen-eighty-four</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> author</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> George Orwell</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> published-at</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#A65E2B;--shiki-dark:#C99076;"> 1949-06-08</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> page-count</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#2F798A;--shiki-dark:#4C9A91;"> 328</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> description</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#1E754F;--shiki-dark:#4D9375;"> |</span></span>
<span class="line"><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> A Novel, often published as 1984, is a dystopian novel by English novelist George Orwell.</span></span>
<span class="line"><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> It was published in June 1949 by Secker &amp; Warburg as Orwell&#39;s ninth and final book.</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>这将转换为 JSON ：</p><div class="language-json" data-highlighter="shiki" data-ext="json" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-json"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">{</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">nineteen-eighty-four</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#999999;--shiki-dark:#666666;"> {</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">author</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;"> &quot;</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">George Orwell</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">,</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">published-at</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;"> &quot;</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">1949-06-08T00:00:00.000Z</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">,</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">page-count</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#2F798A;--shiki-dark:#4C9A91;"> 328</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">,</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">description</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;"> &quot;</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">A Novel, often published as 1984, is a dystopian novel by English novelist George Orwell.</span><span style="--shiki-light:#A65E2B;--shiki-dark:#C99076;">\\n</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">It was published in June 1949 by Secker &amp; Warburg as Orwell&#39;s ninth and final book.</span><span style="--shiki-light:#A65E2B;--shiki-dark:#C99076;">\\n</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;">&quot;</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;"> }</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">}</span></span></code></pre></div><h3 id="对象列表" tabindex="-1"><a class="header-anchor" href="#对象列表"><span>对象列表</span></a></h3><p>将序列和嵌套值组合在一起，我们可以创建一个对象列表。</p><div class="language-md line-numbers-mode" data-highlighter="shiki" data-ext="md" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-md"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># Let&#39;s list books:</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">-</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> nineteen-eighty-four</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> author</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> George Orwell</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> published-at</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#A65E2B;--shiki-dark:#C99076;"> 1949-06-08</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> page-count</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#2F798A;--shiki-dark:#4C9A91;"> 328</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> description</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#1E754F;--shiki-dark:#4D9375;"> |</span></span>
<span class="line"><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> A Novel, often published as 1984, is a dystopian novel by English novelist George Orwell.</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">-</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> the-hobbit</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> author</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> J. R. R. Tolkien</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> published-at</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#A65E2B;--shiki-dark:#C99076;"> 1937-09-21</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> page-count</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#2F798A;--shiki-dark:#4C9A91;"> 310</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> description</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#1E754F;--shiki-dark:#4D9375;"> |</span></span>
<span class="line"><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> The Hobbit, or There and Back Again is a children&#39;s fantasy novel by English author J. R. R. Tolkien.</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="独特特性" tabindex="-1"><a class="header-anchor" href="#独特特性"><span>独特特性</span></a></h2><p>以下是一些引起我注意的 <strong>更复杂的功能</strong> ，它们也使 YAML 与 JSON 区分开来。</p><h3 id="注释" tabindex="-1"><a class="header-anchor" href="#注释"><span>注释</span></a></h3><p>你可能已经在我前面的示例中注意到，YAML 允许以 <code>#</code> 开头的注释。</p><div class="language-md" data-highlighter="shiki" data-ext="md" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-md"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># 这是一个非常有用的注释。</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span></code></pre></div><h3 id="锚点的可重用性" tabindex="-1"><a class="header-anchor" href="#锚点的可重用性"><span>锚点的可重用性</span></a></h3><p>节点锚点用于 <strong>标记一个节点</strong> 以供将来引用，从而允许我们重复使用该节点。 要标记一个节点，我们使用 <code>&amp;</code> 字符，要引用它，我们使用 <code>*</code> ：</p><p>在下面的示例中，我们将定义一个书籍列表并重用作者数据，因此我们只需要定义一次：</p><div class="language-md line-numbers-mode" data-highlighter="shiki" data-ext="md" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-md"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># 作者数据：</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">author</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#999999;--shiki-dark:#666666;"> &amp;</span><span style="--shiki-light:#2E8F82;--shiki-dark:#5DA994;">gOrwell</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> name</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> George</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> last-name</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> Orwell</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># 一些书籍：</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">books</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;"> -</span><span style="--shiki-light:#2F798A;--shiki-dark:#4C9A91;"> 1984</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> author</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#999999;--shiki-dark:#666666;"> *</span><span style="--shiki-light:#B07D48;--shiki-dark:#BD976A;">gOrwell</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;"> -</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;"> animal-farm</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span></span>
<span class="line"><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;"> author:*gOrwell</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>解析为 JSON 后，上面的代码将如下所示：</p><div class="language-json line-numbers-mode" data-highlighter="shiki" data-ext="json" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-json"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">{</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">author</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#999999;--shiki-dark:#666666;"> {</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">name</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;"> &quot;</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">George</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">,</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">last-name</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;"> &quot;</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">Orwell</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;">&quot;</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;"> },</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">books</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#999999;--shiki-dark:#666666;"> [</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;"> {</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">1984</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#999999;--shiki-dark:#666666;"> {</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">author</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#999999;--shiki-dark:#666666;"> {</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">name</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;"> &quot;</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">George</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">,</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">last-name</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;"> &quot;</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">Orwell</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;">&quot;</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;"> }</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;"> }</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;"> },</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;"> {</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">animal-farm</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#999999;--shiki-dark:#666666;"> {</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">author</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#999999;--shiki-dark:#666666;"> {</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">name</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;"> &quot;</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">George</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">,</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">last-name</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;"> &quot;</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">Orwell</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;">&quot;</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;"> }</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;"> }</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;"> }</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;"> ]</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">}</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="带有标签的显式数据类型" tabindex="-1"><a class="header-anchor" href="#带有标签的显式数据类型"><span>带有标签的显式数据类型</span></a></h3><p>正如我们在之前的示例中所见，YAML 会自动检测我们值的类型，但我们也可以 <strong>指定所需的类型</strong> 。</p><p>我们通过在值前加上 <code>!!</code> 类型来指定它。</p><p>以下是一些示例：</p><div class="language-md line-numbers-mode" data-highlighter="shiki" data-ext="md" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-md"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># 以下值应为整数，无论何种情况：</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">should-be-int</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#AB5959;--shiki-dark:#CB7676;"> !!int</span><span style="--shiki-light:#2F798A;--shiki-dark:#4C9A91;"> 3.2</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># 解析任何值为字符串：</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">should-be-string</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#AB5959;--shiki-dark:#CB7676;"> !!str</span><span style="--shiki-light:#2F798A;--shiki-dark:#4C9A91;"> 30.25</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#A0ADA0;--shiki-dark:#758575DD;"># 我需要下一个值为布尔类型：</span></span>
<span class="line"><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">should-be-boolean</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#AB5959;--shiki-dark:#CB7676;"> !!bool</span><span style="--shiki-light:#1E754F;--shiki-dark:#4D9375;"> yes</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">---</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>这将转换为 JSON：</p><div class="language-json" data-highlighter="shiki" data-ext="json" style="--shiki-light:#393a34;--shiki-dark:#dbd7caee;--shiki-light-bg:#ffffff;--shiki-dark-bg:#121212;"><pre class="shiki shiki-themes vitesse-light vitesse-dark vp-code"><code class="language-json"><span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">{</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">should-be-int</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#2F798A;--shiki-dark:#4C9A91;"> 3</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">,</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">should-be-string</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;"> &quot;</span><span style="--shiki-light:#B56959;--shiki-dark:#C98A7D;">30.25</span><span style="--shiki-light:#B5695977;--shiki-dark:#C98A7D77;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">,</span></span>
<span class="line"><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;"> &quot;</span><span style="--shiki-light:#998418;--shiki-dark:#B8A965;">should-be-boolean</span><span style="--shiki-light:#99841877;--shiki-dark:#B8A96577;">&quot;</span><span style="--shiki-light:#999999;--shiki-dark:#666666;">:</span><span style="--shiki-light:#1E754F;--shiki-dark:#4D9375;"> true</span></span>
<span class="line"><span style="--shiki-light:#999999;--shiki-dark:#666666;">}</span></span></code></pre></div>`,62)]])}var s=r(a,[[`render`,o]]);export{i as _pageData,s as default};
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