每天CookBook之JavaScript-052

  • 使用querySelectorAll获取元素
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>052</title>
</head>
<body>
    <article>
        <div><img src="001" alt=""></div>
    </article>
    <article>
        <div><img src="002" alt=""></div>
    </article>
    <article>
        <div><img src="003" alt=""></div>
    </article>
</body>
<script type="text/javascript">
var imgs = document.querySelectorAll("article img");
console.log(imgs.length);

imgs = document.querySelectorAll("img");
console.log(imgs.length);
</script>
</html>
posted @ 2016-07-21 21:01  4Thing  阅读(112)  评论(0)    收藏  举报