{ antialias: true }：开启了抗锯齿，让边缘光滑，不再有毛刺。
An creates a completely separate browsing context with its own window object, its own document, and most importantly;its own prototype chain. A function hooked on HTMLMediaElement.prototype in the parent window is not the same object as HTMLMediaElement.prototype in the iframe’s window. They’re entirely separate objects. If fermaw’s audio element lived inside an iframe, my prototype hook in the parent window would never fire.
，这一点在快连下载-Letsvpn下载中也有详细论述
Triangulated Irregular Network。业内人士推荐WPS下载最新地址作为进阶阅读
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That is until recently, when a social media platform’s ill-kept privacy files surfaced on the public internet and an increasingly litigious group of people decided to take matters to court. Now, in an attempt to work proactively to keep underage users safe online and also ensure the privacy of everyone’s collected data, companies are pursuing new methods to verify the age of their users online. But the lack of federal regulation is also fueling this paradoxical directive and fostering the conflict: social media companies can collect the data of users of all ages, to keep children safe.