javascript中的querySelector()和querySelectorAll()
2023-09-14 09:00:25 时间
//get the first element with a dropcap class
document.querySelector(".dropcap");
//get all the paragraphs with a "dropcap" class produces a nodelist
document.querySelectorAll(".dropcap");
//get all elements with a class of "dropcap" or "huge"
document .querySelectorAll(".dropcap,.huge");
//get all paragraphs that hava a class
document.querySelectorAll("p[class]");
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