What is the best cross-browser way to detect the scrollTop of the browser window? I prefer not to use any pre-built code libraries because this is a very simple script, and I don't need all of that deadweight.What is the best cross-browser way to detect th
阅读背景：
用于检测浏览器窗口的滚动顶部的跨浏览器方法。
来源：互联网
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