google+发表新话题时,添加链接地址生成缩略图和缩略文字怎么实现?

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Release: 2016-06-06 20:52:35
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把链接地址粘贴在添加链接栏上,确认后会生成该链接网站的缩略图和缩略文字,这个功能是如何实现的呢?

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把链接地址粘贴在添加链接栏上,确认后会生成该链接网站的缩略图和缩略文字,这个功能是如何实现的呢?

打开链接,得到返回,然后渲染html生成缩略图。

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