批改状态:合格
老师批语:
<html><head><title>Title</title></head><body><script>//通过类名获取所有元素的方法function gclass(className, tagName) {var alltags = document.getElementsByTagName(tagName || "*");var arr=new Array();for(let i=0; i<alltags.length; i++) {var one = className.split(" ");var two = alltags[i].className.split(" ");if(isHasArray(one, two)) {arr[arr.length] = alltags[i];}}return arr;}</script></body></html>
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