插入不了圖片了，上代碼<body>
? <div?class="ball_1"?>
?????????<span><?php?$nu??></span>
????</div>
?????<div?class="ball_2">
?????????<span><?php?$nu??></span>
????</div>?
????<div?class="ball_3">
?????????<span><?php?$nu??></span>
????</div>?
????<div?class="ball_4">
?????????<span><?php?$nu??></span>
????</div>?
????<div?class="ball_5">
?????????<span><?php?$nu??></span>
????</div>
<div?id="ball_6"?class="ball_6">
?????????<span><?php?$nu??></span>
????</div>?
????<br/><br/><br/><br/>
????<input?type="button"?value="賭博一下"?onclick=""?/>
????<script?type="text/javascript">
???? var?ball2=document.getElementsByTagName("div").className;
????????var?ball1=document.getElementById("ball_6").className;
????????alert(ball2);
為什么js只能獲取id加classname，但是tagname就不行？如圖
俠客島的含笑
2016-11-03 13:12:34