这里的head_divs获取到了“html”的那些元素。

Question

var head_divs = document.getElementById("tab-head").getElementsByTagName("div");

这里的head_divs获取到了“html”的那些元素。【麻烦大神们将清楚下，百度上的概念在生硬。。】

Answer 1

id为tab-head的子元素中为div的所有元素

Answer 2

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