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>