目录
1.v-show:频繁控制显示隐藏
v-if:要么显示，要么隐藏
<!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>
.box {
width: 200px;
height: 100px;
line-height: 100px;
margin: 10px;
border: 3px solid #000;
text-align: center;
border-radius: 5px;
box-shadow: 2px 2px 2px #ccc;
}
</style>
</head>
<body>
<div id="app">
<div v-show="flag" class="box">我是v-show控制的盒子</div>
<div v-if="flag" class="box">我是v-if控制的盒子</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/vue@2.7.16/dist/vue.js"></script>
<script>
const app=new Vue({
el:'#app',
data:{
flag:true
}
})
</script>
</body>
</html>
2.网页渲染效果
3.flag:true
4.若flag:false，则
