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DOM Tree
DOM Tree
什么是DOM树:
网页的所有内容在内存当中,其实是以树形结构存储的
何时创建:
当浏览器,读取html中内容的时候,会马上开始创建DOM树。
如何创建:
1、读到HTML的时候还没有度内容的时候,先创建根节点对对象
2、开始顺序读取HTML文档的内容,在创建子节点。
网页当中一切内容,都是document树上的节点对象。都是对象。
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原文地址:https://www.cnblogs.com/pandawind/p/9922995.html
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