lovecoding
/
web0715


			
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <ul class="ul1">
        <li>1</li>
        <li>2</li>
        <li>3</li>
        <li>4</li>
    </ul>
    <ul class="ul2">
        <li>a</li>
        <li>b</li>
    </ul>
    <div class="box">
        <span>hello</span>
        world
        <p>你好</p>
    </div>
    <script>
        var aUl1 = document.getElementsByClassName("ul1")[0];
        var oBox = document.getElementsByClassName("box")[0];
        // var aLi1 = aUl1.getElementsByTagName("li");
        // console.log(aLi1)
        // childNodes 可以获取当前元素的子节点 节点包含字符比如回车
        console.log(aUl1.childNodes);
        console.log(oBox.childNodes);

        // children 获取当前元素的子节点但仅包含元素节点不包含文本节点
        console.log(aUl1.children);
        console.log(aUl1.children[2]);


    </script>
</body>
</html>