lovecoding
/
vipAllDay


			
				
					
						
						
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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>
    <style>
        /* h1 {
            color: red;
        } */
        .active {
            color: red;
        }
        .size {
            width: 300px;
            height: 300px;
            color: #0f0;
            background: #ff0;
        }
        .color {
            color: #00f;
        }
    </style>
</head>
<body>
    <!-- 
        样式绑定
            内置指令：v-bind 简写=> :
            class
            格式：
                v-bind:class="样式语句"
                :class="样式语句"
     -->
     <div id="app">
        <h1 v-bind:class="{active:isShow}">这是第一行</h1>
        <!-- 样式不是覆盖是合并 -->
        <h2 :class="{active:isShow,size:true}">这是第一行</h2>
        <!-- 数组 + 对象 -->
        <h3 :class="[{color:true},'size']">新的语句</h3>
     </div>
     <script src="./vue.js"></script>
     <script>
        var app = new Vue({
            el:"#app",
            data:{
                isShow: true
            },
        })
     </script>
</body>
</html>