前缀data-属性和dataset的使用方法

<p id="box" data-name='ghostwu' data-age='22' , data-sex='man'>ghostwu tell you how to learn html5</p>

    <script>

        var oBox = document.querySelector("#box");

        console.log( oBox.dataset ) ;

        var myName = oBox.dataset.name;

        var myAge = oBox.dataset.age;

        var mySex = oBox.dataset.sex;

        if( oBox.dataset.name ) {

            console.log( oBox.dataset.name );

        }

    </script>