本篇文章给大家带来的内容是关于什么事dom对象？dom对象简介，有一定的参考价值，有需要的朋友可以参考一下，希望对你有所帮助。
一、DOM对象
DOM，全称“Document Object Model（文档对象模型）”，它是由W3C组织定义的一个标准。
在前端开发时，我们往往需要在页面某个地方添加一个元素或者删除元素，这种添加元素、删除元素的操作就是通过DOM来实现的。
说白了，DOM就是一个接口，我们可以通过DOM来操作页面中各种元素，例如添加元素、删除元素、替换元素等。这下大家就懂了吧。记住，DOM就是文档对象模型，文档对象模型就是DOM，很多人在学习DOM的时候看到“文档对象模型”还不知道是什么？
二、DOM结构
DOM采用树形结构作为分层结构，以树节点形式表示页面中各种元素或内容。
举例：
<title> <h1>创想鸟</h1> <p>创想鸟成立.....</p></pre> <div class="contentsignin"></div> </div> <p>在DOM中，每一个元素看成一个节点，而每一个节点就是一个“对象”。也就是我们在操作元素时，把每一个元素节点看成一个对象，然后使用这个对象的属性和方法进行相关操作。（这句话对理解DOM操作太重要了）。</p> <p>下面我们介绍几个关于节点的概念。</p> <p>1、根节点</p> <p>在HTML文档中，html就是根节点。</p> <p>2、父节点</p> <p>一个节点之上的节点就是该节点的父节点，例如h1的父节点就是body，body的父节点就是html。</p> <p>3、子节点</p> <p>一个节点之下的节点就是该节点的子节点，例如h1就是body的子节点。</p> <p>4、兄弟节点</p> <p>如果多个节点在同一层次，并拥有相同的父节点，那么这几个节点就是兄弟节点。</p> <p>例如h1和p就是兄弟节点，因为他们拥有相同的父节点body。</p> <p>以上就是对<span class="wpcom_tag_link"><a href="https://www.chuangxiangniao.com/p/tag/shenmeshidomduixiang" title="什么是DOM对象" target="_blank">什么是DOM对象</a></span>？<span class="wpcom_tag_link"><a href="https://www.chuangxiangniao.com/p/tag/domduixiangjianjie" title="DOM对象简介" target="_blank">DOM对象简介</a></span>的全部介绍，如果您想了解更多有关CSS3教程，请关注PHP中文网。</p> <p>以上就是什么是DOM对象？DOM对象简介的详细内容，更多请关注创想鸟其它相关文章！</p> <div class="entry-readmore"><div class="entry-readmore-btn"></div></div> <div 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