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网络：输入URL之后发生了什么 #12

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Chenjiayuan195 opened this issue May 26, 2020 · 1 comment
Open

网络：输入URL之后发生了什么 #12

Chenjiayuan195 opened this issue May 26, 2020 · 1 comment

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@Chenjiayuan195
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@Chenjiayuan195
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DNS查询--->DNS解析---->TCP握手---->(Https)TLS握手---->响应HTML ----->解析html ---->gzip解压---->构建DOM树---->构建CSSDOM树---->加载script async 并行下载执行 defer下载之后DOM之后执行 --->CSSOM和DOM合并成Render树 ---->GPU绘制

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