强制绑定class属性

1、案例1

<!DOCTYPE html>
<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>强制绑定class属性</title>
    <style>
        .aClass {
            color: yellow;
        }

        .bClass {
            color: blue;
        }

        .cClass {
            font-size: 50px;
        }
    </style>
</head>

<body>
    <div id="app">
        <!--p标签会同时有aClass和cClass-->
        <p class="aClass" :class="c">XXXXXXXXXXXXXXXXXXXXX</p>
        <!--p标签只有bClass-->
        <p :class="{bClass:true,cClass:isc}">XXXXXXXXXXXXXXXXXXXXX</p>
        <!--p标签同时有bClass和cClass-->
        <p :class="[b,'cClass']">XXXXXXXXXXXXXXXXXXXXX</p>
    </div>
    <script src="../js/vue.js" type="text/javascript"></script>
    <script>
        const vm = new Vue({
            el: "#app",
            data: {
                a: "aClass",
                b: "bClass",
                c: "cClass",
                isc: false
            }
        });
    </script>
</body>

</html>

 

posted @ 2020-03-09 20:32  牛牛的自留地  阅读(286)  评论(0)  编辑  收藏  举报