Vue_note/v-show.html at main · MOSIAW/Vue_note · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <!-- 与v-if不同的是v-show只隐藏display属性
        v-if隐藏整个DOM元素
        频繁切换时使用show,仅一次切换时使用v-if
    -->
    <div style="height: 100px; width: 200px;">
        <input type="button" value="切换" @click="change">
        <div v-show="isShow"  style="height: 20px;width: 20px; background-color: aquamarine;">222</div>
        <input type="button" value="+1" @click="add">
        <div v-show="age>=18" style="height: 20px;width: 20px; background-color: rgb(255, 127, 217);"> 222</div>
        <!-- <img src="./img/1.jpg" alt="" v-show="isShow"> -->
        <!-- <img v-show="age>=18" src="./img/1.jpg" alt=""> -->
    </div>

    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
    <script>
        var s = new Vue({
            el:"div",
            data:{
                isShow:false,
                age:17
            },
            methods:{
                change:function(){
                    this.isShow = !this.isShow;
                },
                add:function(){
                    this.age++;
                }
            }
        })
    </script>
</body>
</html>