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来源：4-4 编程练习

xiao白做大事

2020-12-09 22:37:27

<!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>
    <div id="list">
        
        <dl>
            <dt>前端</dt>
            <dd>Vue</dd>
            <dd>Vue</dd>
            <dd>Vue</dd>
        </dl>
    </div>
    <script>
        var classfies = {
            "前端": ["Vue", "Angular", "React"],
            "后端": ["Php", "Java", "Python"]
        }
    /*补充代码*/
        const list = document.getElementById('list');
        let htmlStr = '';
        for (const [key,[v1,v2,v3]] of Object.entries(classfies)) {
            htmlStr += `<dl> <dt>${key}</dt> <dd>${v1}</dd> <dd>${v2}</dd> <dd>${v3}</dd> </dl>`;
        }
        list.innerHTML = htmlStr;
    </script>
</body>

</html>
在这里输入代码，可通过选择【代码语言】突出显示