XML与RSS有何本质区别?

XML是通用的数据描述语言,用于定义结构化数据格式;RSS是基于XML的特定应用,专用于内容聚合与分发。

xml与rss有何本质区别?

XML(可扩展标记语言)和RSS(简易信息聚合)的本质区别在于,XML是一种通用的、用于定义其他标记语言的元语言,它提供了一套规则来构建结构化数据;而RSS则是XML的一个具体应用,它遵循XML的规则,专门用于发布和聚合网站更新内容(如新闻、博客文章)。说白了,XML是“造轮子的方法论”,而RSS是“用这个方法论造出来的一个特定用途的轮子”。

解决方案

要深入理解XML与RSS的区别,我们得从它们的定位和功能说起。XML的诞生,是为了解决不同系统间数据交换的难题,它提供了一种灵活且标准化的方式来描述任意数据结构。你可以用XML来定义你自己的数据格式,比如一个描述书籍信息的XML文档,或者一个描述产品存的XML文档。它的核心在于“可扩展”,这意味着你可以根据自己的需求创建自定义的标签和属性。

而RSS,它是在XML的基础上,预先定义好了一套固定的标签和结构,比如



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<p>、</p>
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<p>、</p>
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<p>等,这些标签就是为了方便网站发布者将最新内容(如博客文章、新闻头条)以标准化的格式推送给订阅者。订阅者通过RSS阅读器,就能统一获取和浏览来自不同网站的更新,而无需逐一访问每个网站。所以,RSS本质上就是一个遵循特定DTD或Schema的XML文档,它的结构是固定的,目的性非常强。</p>
<p>打个比方,XML就像是乐高积木的说明书,告诉你如何将各种积木块组合起来,你可以用它搭出房子、汽车、飞船,任何你想要的东西。而RSS,就像是乐高积木里预设好的一个“小汽车”的搭建图纸,它已经规定了你需要哪些积木块,以及它们如何组合才能成为一辆车。你不能用RSS的图纸去搭一艘飞船,但你可以用XML的说明书去定义任何你想要的图纸,包括RSS。</p>
<h3>RSS在信息聚合中扮演了什么角色,它与XML的关系是怎样的?</h3>
<p>RSS在信息聚合领域,扮演着一个核心的“内容分发管道”角色。它让信息不再被动地等待用户去发现,而是主动地流向用户。想想看,以前我们要了解多个网站的最新动态,可能需要每天打开十几个网页。有了RSS,这些网站只需要发布一个RSS Feed,我们的RSS阅读器就能自动抓取并显示这些更新。这大大提升了用户获取信息的效率,也为内容发布者提供了一个标准化的内容传播渠道。</p>
<p>它与XML的关系,在我看来,是“特例与通用”的关系。RSS是XML的“一个成功案例”或者“一个具体的应用范畴”。每一个RSS Feed,从技术层面看,它就是一个符合特定规范的XML文档。这意味着,所有XML解析器都能解析RSS Feed。RSS利用了XML的结构化能力,通过定义一套统一的标签集,确保了不同网站发布的内容能够被统一识别和处理。比如,一个博客文章的标题总是在</p>
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<p>标签里,链接总是在</p>
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<p>标签里,这样RSS阅读器就知道该如何提取这些信息并展示给用户。可以说,没有XML提供的基础,RSS这种标准化、可机器读取的信息聚合模式就无从谈起。它就像是XML这个大框架下,一个非常实用且普及的小模块。</p>
<h3>XML除了RSS,还有哪些广泛的应用场景?</h3>
<p>XML的应用远不止RSS,它的通用性和灵活性让它在IT行业的多个领域都扮演着不可或缺的角色。我个人觉得,XML最核心的价值在于其“数据描述”和“数据交换”的能力。</p>
<p>比如,在<strong>Web服务</strong>领域,SOAP(Simple Object Access Protocol)就是基于XML的,它允许不同的应用程序通过网络进行通信和交换信息。尽管后来JSON在某些场景下更受欢迎,但SOAP/XML在企业级应用中依然占据一席之地,特别是在那些对数据结构和安全性有严格要求的场景。</p>
<p>再者,<strong>配置文件的存储</strong>也是XML的一个常见用途。很多应用程序的配置信息,比如各种设置、参数,都会以XML格式存储。因为它结构清晰,易于阅读和修改,而且可以通过XML Schema进行验证,确保配置的正确性。</p>
<p>此外,<strong>文档格式</strong>也大量采用XML。Office Open XML(Microsoft Office 2007及以后版本的文件格式,如.docx、.xlsx)和OpenDocument Format(ODF, LibreOffice等使用的格式)底层都是XML。SVG(Scalable Vector Graphics)也是一种基于XML的图像格式,它允许用文本描述矢量图形,这在Web<span class="wpcom_tag_link"><a href="https://www.chuangxiangniao.com/p/tag/qianduankaifa" title="前端开发" target="_blank">前端开发</a></span>中非常有用。</p>
<p>在<strong>数据交换和集成</strong>方面,XML更是主力。当不同的系统(比如一个<span class="wpcom_tag_link"><a href="https://www.chuangxiangniao.com/p/tag/kucunguanli" title="库存管理" target="_blank">库存管理</a></span>系统和一个电商平台)需要交换数据时,XML提供了一个通用的语言。通过定义一套共享的XML Schema,双方可以确保数据在传输过程中保持结构完整和语义一致。这对于构建复杂的企业级应用架构至关重要。</p>
<h3>作为开发者或内容发布者,理解XML与RSS的区别有何实际意义?</h3>
<p>对于开发者和内容发布者来说,理解XML与RSS的本质区别,不仅仅是理论知识,更是实实在在的技术决策和策略制定的基础。</p>
<p>从<strong>开发者的角度</strong>来看,如果你需要处理RSS Feed,你会知道它是一个结构相对固定的XML文档。这意味着你可以使用标准的XML解析库(DOM、SAX或StAX,或者更高层的如XPath、XSLT)来解析它,提取所需信息。但如果你要设计一个全新的数据交换格式,比如你正在构建一个物联网平台,设备之间需要传输各种传感器数据,那么你就会用到XML的通用性。你可以根据自己的数据模型,灵活地定义XML标签和结构,而不需要受限于RSS的预设格式。这时候,你关注的更多是XML Schema的编写、命名空间的管理以及如何确保你的XML文档“良好格式”和“有效”。比如,我之前在做数据同步项目时,就遇到过需要根据业务需求定制XML结构的情况,而不是简单地套用现有标准。</p>
<p>对于<strong>内容发布者</strong>而言,理解这个区别,能让你更清楚地认识到RSS Feed的价值和局限性。RSS是你的内容分发<span class="wpcom_tag_link"><a href="https://www.chuangxiangniao.com/p/tag/gongju" title="工具" target="_blank">工具</a></span>之一,它能帮你触达那些使用RSS阅读器的用户。你会知道,你的文章标题、摘要、链接等信息需要正确地填充到RSS的特定标签中,才能被阅读器正确显示。但同时,你也会明白RSS并不能满足你所有的内容管理和数据存储需求。比如,你的网站可能需要用XML来存储文章的元数据、用户评论、产品信息等,这些数据可能比RSS Feed中的信息更丰富、结构更复杂。你可能会有一个内部系统,用XML来存储和管理所有的内容草稿,然后通过一个转换器生成符合RSS规范的Feed供外部订阅。这种分层处理的思路,正是建立在对XML通用性和RSS专用性深刻理解之上的。</p>
<p>简而言之,XML为你提供了构建任何结构化数据的能力,而RSS则是在这个能力框架下,为“内容聚合”这个特定场景提供了一个即插即用的解决方案。搞清楚这一点,能帮助我们更高效、更灵活地应对各种数据处理和内容分发挑战。</p>
<p>以上就是XML与RSS有何本质区别?的详细内容,更多请关注创想鸟其它相关文章!</p>
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                    <img alt='程序猿的头像' src='//cdn.chuangxiangniao.com/www/2025/10/2025102208472691.jpg' class='avatar avatar-60 photo' height='60' width='60' decoding='async'/>                    <span>程序猿</span>
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                                    <span class="item-meta-li date">2025年12月24日</span>
            <div class="item-meta-right">
                <span class="item-meta-li views" title="阅读数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-eye"></use></svg></i>0</span><a class="item-meta-li comments" href="https://www.chuangxiangniao.com/p/1631195.html#comments" target="_blank" title="评论数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-comment"></use></svg></i>0</a><span class="item-meta-li stars" title="收藏数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-star"></use></svg></i>0</span><span class="item-meta-li likes" title="点赞数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-thumb-up"></use></svg></i>0</span>            </div>
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<li class="item item2">
        <div class="item-img">
        <a class="item-img-inner" href="https://www.chuangxiangniao.com/p/1631133.html" title="当父元素仅设置行高时,块级和行内块级元素的行为有何区别?" target="_blank" rel="bookmark">
            <img width="480" height="300" src="https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png" class="attachment-default size-default wp-post-image j-lazy" alt="当父元素仅设置行高时,块级和行内块级元素的行为有何区别?" decoding="async" data-original="https://cdn.chuangxiangniao.com/www/2025/12/173016144479794.jpg?imageMogr2/crop/480x300/gravity/center" />        </a>
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                <h3 class="item-title">
            <a href="https://www.chuangxiangniao.com/p/1631133.html" target="_blank" rel="bookmark">
                                 当父元素仅设置行高时,块级和行内块级元素的行为有何区别?            </a>
        </h3>
        <div class="item-excerpt">
            <p>当父元素仅设置行高时,块级或行内块级子元素的行为 在 html 中,当父元素仅设置行高 line-height 时,块级或行内块级元素的行为会有所不同。 <line-height: 60px; background-color: antiquewhite; 哈哈哈 行内块级元素(display…</p>
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                        <div class="item-meta-li author">
                                <a data-user="3" target="_blank" href="https://www.chuangxiangniao.com/user/3" class="avatar j-user-card">
                    <img alt='程序猿的头像' src='//cdn.chuangxiangniao.com/www/2025/10/2025102208472691.jpg' class='avatar avatar-60 photo' height='60' width='60' decoding='async'/>                    <span>程序猿</span>
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                                    <span class="item-meta-li date">2025年12月24日</span>
            <div class="item-meta-right">
                <span class="item-meta-li views" title="阅读数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-eye"></use></svg></i>2</span><a class="item-meta-li comments" href="https://www.chuangxiangniao.com/p/1631133.html#comments" target="_blank" title="评论数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-comment"></use></svg></i>0</a><span class="item-meta-li stars" title="收藏数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-star"></use></svg></i>0</span><span class="item-meta-li likes" title="点赞数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-thumb-up"></use></svg></i>0</span>            </div>
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</li>
<li class="item item2">
        <div class="item-img">
        <a class="item-img-inner" href="https://www.chuangxiangniao.com/p/1630969.html" title="为什么将perspective样式设置在带有transform-style: preserve-3d样式的元素的父级元素上才能得到预期的3D变换效果?" target="_blank" rel="bookmark">
            <img width="480" height="300" src="https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png" class="attachment-default size-default wp-post-image j-lazy" alt="为什么将perspective样式设置在带有transform-style: preserve-3d样式的元素的父级元素上才能得到预期的3D变换效果?" decoding="async" data-original="https://cdn.chuangxiangniao.com/www/2025/12/172999264416461.jpg?imageMogr2/crop/480x300/gravity/center" />        </a>
                <a class="item-category" href="https://www.chuangxiangniao.com/news-2" target="_blank">好文分享</a>
            </div>
        <div class="item-content">
                <h3 class="item-title">
            <a href="https://www.chuangxiangniao.com/p/1630969.html" target="_blank" rel="bookmark">
                                 为什么将perspective样式设置在带有transform-style: preserve-3d样式的元素的父级元素上才能得到预期的3D变换效果?            </a>
        </h3>
        <div class="item-excerpt">
            <p>perspective必须设置在带有transform style: preserve-3d样式的元素的父级元素上吗? 问题: 你的HTML和CSS代码中,将perspective样式设置在了.scene元素上,当你将其移动到.cube元素后,效果却发生了变化。这是为什么? 解答: perspect…</p>
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        <div class="item-meta">
                        <div class="item-meta-li author">
                                <a data-user="3" target="_blank" href="https://www.chuangxiangniao.com/user/3" class="avatar j-user-card">
                    <img alt='程序猿的头像' src='//cdn.chuangxiangniao.com/www/2025/10/2025102208472691.jpg' class='avatar avatar-60 photo' height='60' width='60' decoding='async'/>                    <span>程序猿</span>
                </a>
            </div>
                                    <span class="item-meta-li date">2025年12月24日</span>
            <div class="item-meta-right">
                <span class="item-meta-li views" title="阅读数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-eye"></use></svg></i>0</span><a class="item-meta-li comments" href="https://www.chuangxiangniao.com/p/1630969.html#comments" target="_blank" title="评论数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-comment"></use></svg></i>0</a><span class="item-meta-li stars" title="收藏数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-star"></use></svg></i>0</span><span class="item-meta-li likes" title="点赞数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-thumb-up"></use></svg></i>0</span>            </div>
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<li class="item item2">
        <div class="item-img">
        <a class="item-img-inner" href="https://www.chuangxiangniao.com/p/1630936.html" title="perspective属性设置在父元素和后代元素上,对3D效果有什么区别?" target="_blank" rel="bookmark">
            <img width="480" height="300" src="https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png" class="attachment-default size-default wp-post-image j-lazy" alt="perspective属性设置在父元素和后代元素上,对3D效果有什么区别?" decoding="async" data-original="https://cdn.chuangxiangniao.com/www/2025/12/172995427663037.jpg?imageMogr2/crop/480x300/gravity/center" />        </a>
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            </div>
        <div class="item-content">
                <h3 class="item-title">
            <a href="https://www.chuangxiangniao.com/p/1630936.html" target="_blank" rel="bookmark">
                                 perspective属性设置在父元素和后代元素上,对3D效果有什么区别?            </a>
        </h3>
        <div class="item-excerpt">
            <p>perspective属性的位置对3d效果的影响 通常情况下,perspective属性需要设置在应用了transform-style: preserve-3d属性的父元素上。然而,如果perspective属性设置在后代元素上会产生不同的效果。 为了演示区别,让我们扩展已有的示例: front b…</p>
        </div>
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                        <div class="item-meta-li author">
                                <a data-user="3" target="_blank" href="https://www.chuangxiangniao.com/user/3" class="avatar j-user-card">
                    <img alt='程序猿的头像' src='//cdn.chuangxiangniao.com/www/2025/10/2025102208472691.jpg' class='avatar avatar-60 photo' height='60' width='60' decoding='async'/>                    <span>程序猿</span>
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            </div>
                                    <span class="item-meta-li date">2025年12月24日</span>
            <div class="item-meta-right">
                <span class="item-meta-li views" title="阅读数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-eye"></use></svg></i>0</span><a class="item-meta-li comments" href="https://www.chuangxiangniao.com/p/1630936.html#comments" target="_blank" title="评论数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-comment"></use></svg></i>0</a><span class="item-meta-li stars" title="收藏数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-star"></use></svg></i>0</span><span class="item-meta-li likes" title="点赞数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-thumb-up"></use></svg></i>0</span>            </div>
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<li class="item item2">
        <div class="item-img">
        <a class="item-img-inner" href="https://www.chuangxiangniao.com/p/1630902.html" title="CSS perspective 属性,设置在不同元素上会产生什么区别?" target="_blank" rel="bookmark">
            <img width="480" height="300" src="https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png" class="attachment-default size-default wp-post-image j-lazy" alt="CSS perspective 属性,设置在不同元素上会产生什么区别?" decoding="async" data-original="https://cdn.chuangxiangniao.com/www/2025/12/172994475215802.jpg?imageMogr2/crop/480x300/gravity/center" />        </a>
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        <div class="item-content">
                <h3 class="item-title">
            <a href="https://www.chuangxiangniao.com/p/1630902.html" target="_blank" rel="bookmark">
                                 CSS perspective 属性,设置在不同元素上会产生什么区别?            </a>
        </h3>
        <div class="item-excerpt">
            <p>perspective 属性在不同元素上的效果对比 CSS 中的 perspective 属性用于指定 3D 转换的视角距离。它可以通过改变物体相对于观察者的远近距离来创建三维效果。然而,将 perspective 设置在不同的元素上会产生不同的效果。 根据提供的代码,我们将 perspective…</p>
        </div>
        <div class="item-meta">
                        <div class="item-meta-li author">
                                <a data-user="3" target="_blank" href="https://www.chuangxiangniao.com/user/3" class="avatar j-user-card">
                    <img alt='程序猿的头像' src='//cdn.chuangxiangniao.com/www/2025/10/2025102208472691.jpg' class='avatar avatar-60 photo' height='60' width='60' decoding='async'/>                    <span>程序猿</span>
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                                    <span class="item-meta-li date">2025年12月24日</span>
            <div class="item-meta-right">
                <span class="item-meta-li views" title="阅读数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-eye"></use></svg></i>0</span><a class="item-meta-li comments" href="https://www.chuangxiangniao.com/p/1630902.html#comments" target="_blank" title="评论数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-comment"></use></svg></i>0</a><span class="item-meta-li stars" title="收藏数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-star"></use></svg></i>0</span><span class="item-meta-li likes" title="点赞数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-thumb-up"></use></svg></i>0</span>            </div>
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        <div class="item-img">
        <a class="item-img-inner" href="https://www.chuangxiangniao.com/p/1630698.html" title="## PostCSS vs. Sass/Less/Stylus:如何选择合适的 CSS 代码编译工具?" target="_blank" rel="bookmark">
            <img width="480" height="300" src="https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png" class="attachment-default size-default wp-post-image j-lazy" alt="## PostCSS vs. Sass/Less/Stylus:如何选择合适的 CSS 代码编译工具?" decoding="async" data-original="https://cdn.chuangxiangniao.com/www/2025/12/172981952143744.jpg?imageMogr2/crop/480x300/gravity/center" />        </a>
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                <h3 class="item-title">
            <a href="https://www.chuangxiangniao.com/p/1630698.html" target="_blank" rel="bookmark">
                                 ## PostCSS vs. Sass/Less/Stylus:如何选择合适的 CSS 代码编译工具?            </a>
        </h3>
        <div class="item-excerpt">
            <p>PostCSS 与 Sass/Less/Stylus:CSS 代码编译转换中的异同 在 CSS 代码的编译转换领域,PostCSS 与 Sass/Less/Stylus 扮演着重要的角色,但它们的作用却存在细微差异。 区别 PostCSS 主要是一种 CSS 后处理器,它在 CSS 代码编译后进行处…</p>
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                                <a data-user="3" target="_blank" href="https://www.chuangxiangniao.com/user/3" class="avatar j-user-card">
                    <img alt='程序猿的头像' src='//cdn.chuangxiangniao.com/www/2025/10/2025102208472691.jpg' class='avatar avatar-60 photo' height='60' width='60' decoding='async'/>                    <span>程序猿</span>
                </a>
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                                    <span class="item-meta-li date">2025年12月24日</span>
            <div class="item-meta-right">
                <span class="item-meta-li views" title="阅读数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-eye"></use></svg></i>0</span><a class="item-meta-li comments" href="https://www.chuangxiangniao.com/p/1630698.html#comments" target="_blank" title="评论数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-comment"></use></svg></i>0</a><span class="item-meta-li stars" title="收藏数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-star"></use></svg></i>0</span><span class="item-meta-li likes" title="点赞数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-thumb-up"></use></svg></i>0</span>            </div>
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        <div class="item-img">
        <a class="item-img-inner" href="https://www.chuangxiangniao.com/p/1630604.html" title="CSS flex 布局中 justify-content 的 flex-start 和 start 的区别是什么?" target="_blank" rel="bookmark">
            <img width="480" height="300" src="https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png" class="attachment-default size-default wp-post-image j-lazy" alt="CSS flex 布局中 justify-content 的 flex-start 和 start 的区别是什么?" decoding="async" data-original="https://cdn.chuangxiangniao.com/www/2025/12/172974543514138.jpg?imageMogr2/crop/480x300/gravity/center" />        </a>
                <a class="item-category" href="https://www.chuangxiangniao.com/news-2" target="_blank">好文分享</a>
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        <div class="item-content">
                <h3 class="item-title">
            <a href="https://www.chuangxiangniao.com/p/1630604.html" target="_blank" rel="bookmark">
                                 CSS flex 布局中 justify-content 的 flex-start 和 start 的区别是什么?            </a>
        </h3>
        <div class="item-excerpt">
            <p>CSS flex 中 justify-content 的 flex-start 和 start 的区别 在 CSS flex 布局中,justify-content 属性用于控制子元素在主轴上的对齐方式。其中,flex-start 和 start 似乎是相同的,但实际上它们有微妙的区别。 定义 根据…</p>
        </div>
        <div class="item-meta">
                        <div class="item-meta-li author">
                                <a data-user="3" target="_blank" href="https://www.chuangxiangniao.com/user/3" class="avatar j-user-card">
                    <img alt='程序猿的头像' src='//cdn.chuangxiangniao.com/www/2025/10/2025102208472691.jpg' class='avatar avatar-60 photo' height='60' width='60' decoding='async'/>                    <span>程序猿</span>
                </a>
            </div>
                                    <span class="item-meta-li date">2025年12月24日</span>
            <div class="item-meta-right">
                <span class="item-meta-li views" title="阅读数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-eye"></use></svg></i>0</span><a class="item-meta-li comments" href="https://www.chuangxiangniao.com/p/1630604.html#comments" target="_blank" title="评论数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-comment"></use></svg></i>0</a><span class="item-meta-li stars" title="收藏数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-star"></use></svg></i>0</span><span class="item-meta-li likes" title="点赞数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-thumb-up"></use></svg></i>0</span>            </div>
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<li class="item item2">
        <div class="item-img">
        <a class="item-img-inner" href="https://www.chuangxiangniao.com/p/1630538.html" title="css flex 中 justify-content 的 flex-start 和 start 可互换吗?" target="_blank" rel="bookmark">
            <img width="480" height="300" src="https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png" class="attachment-default size-default wp-post-image j-lazy" alt="css flex 中 justify-content 的 flex-start 和 start 可互换吗?" decoding="async" data-original="https://cdn.chuangxiangniao.com/www/2025/12/172973299615339.jpg?imageMogr2/crop/480x300/gravity/center" />        </a>
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        <div class="item-content">
                <h3 class="item-title">
            <a href="https://www.chuangxiangniao.com/p/1630538.html" target="_blank" rel="bookmark">
                                 css flex 中 justify-content 的 flex-start 和 start 可互换吗?            </a>
        </h3>
        <div class="item-excerpt">
            <p>CSS flex 中 justify-content 的 flex-start 和 start 区别解析 MDN 文档上似乎没有提及 start 和 flex-start 在 justify-content 中的区别,但 post-css 插件却会对此发出警告。本文将对此进行解析。 虽然在官方规范中…</p>
        </div>
        <div class="item-meta">
                        <div class="item-meta-li author">
                                <a data-user="3" target="_blank" href="https://www.chuangxiangniao.com/user/3" class="avatar j-user-card">
                    <img alt='程序猿的头像' src='//cdn.chuangxiangniao.com/www/2025/10/2025102208472691.jpg' class='avatar avatar-60 photo' height='60' width='60' decoding='async'/>                    <span>程序猿</span>
                </a>
            </div>
                                    <span class="item-meta-li date">2025年12月24日</span>
            <div class="item-meta-right">
                <span class="item-meta-li views" title="阅读数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-eye"></use></svg></i>0</span><a class="item-meta-li comments" href="https://www.chuangxiangniao.com/p/1630538.html#comments" target="_blank" title="评论数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-comment"></use></svg></i>0</a><span class="item-meta-li stars" title="收藏数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-star"></use></svg></i>0</span><span class="item-meta-li likes" title="点赞数"><i class="wpcom-icon wi"><svg aria-hidden="true"><use xlink:href="#wi-thumb-up"></use></svg></i>0</span>            </div>
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<li class="item item2">
        <div class="item-img">
        <a class="item-img-inner" href="https://www.chuangxiangniao.com/p/1630518.html" title="“flex-start”和“start”在 CSS Flex 中有何差异?" target="_blank" rel="bookmark">
            <img width="480" height="300" src="https://www.chuangxiangniao.com/wp-content/themes/justnews/themer/assets/images/lazy.png" class="attachment-default size-default wp-post-image j-lazy" alt="“flex-start”和“start”在 CSS Flex 中有何差异?" decoding="async" data-original="https://cdn.chuangxiangniao.com/www/2025/12/172967913224495.jpg?imageMogr2/crop/480x300/gravity/center" />        </a>
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            </div>
        <div class="item-content">
                <h3 class="item-title">
            <a href="https://www.chuangxiangniao.com/p/1630518.html" target="_blank" rel="bookmark">
                                 “flex-start”和“start”在 CSS Flex 中有何差异?            </a>
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