TA貢獻107條經驗 獲得超146個贊
<!DOCTYPE?html>
<html>
<head>
??<meta?charset="UTF-8">
??<title>測試</title>
</head>
<body>
????<div?class="t">
?????????<span?id="A1"?class="red">A</span>
?????????<span?id="B1"?class="green">B</span>
?????????<span?id="C1"?class="blue">C</span>
????</div>
</body>
</html>
<script?type="text/javascript">
????//DOM節點加載完成后執行
????window.onload=function(){
????????var?A=document.getElementById('A1');
????????var?B=document.getElementById('B1');
????????var?C=document.getElementById('C1');
????????//測試
????????var?Aclass=A.getAttribute("class");
????????var?Bid=B.getAttribute("id");
????????var?Cclass=C.getAttribute("class");
????????alert(Aclass+Bid+Cclass);
????}
</script>出于對回答者的認同和尊重，解決了你的問題，請采納，謝謝
TA貢獻331條經驗 獲得超534個贊
var?spans?=?document.getElementsByClassName('t')[0].getElementsByTagName('span');
for?(var?i=0;i<spans.length;i++)?{
????console.log(spans[i].getAttribute('id'));
}
TA貢獻20條經驗 獲得超25個贊
??<script>
????var?t?=?document.getElementById('A1');
????document.write(t.getAttribute('id'));
??</script>吶，getAttribute()。
舉報