counter求和功能

最新推荐文章于 2021-09-28 23:31:27 发布

TomKing9

最新推荐文章于 2021-09-28 23:31:27 发布

阅读量238

点赞数

分类专栏： VUE学习

本文链接：https://blog.youkuaiyun.com/tomking9/article/details/118691123

版权

VUE学习专栏收录该内容

6 篇文章

订阅专栏

<!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>
    <script src="./vue.js"></script>
</head>
<body>
    <div id="app">
        <counter ref="one" @change= "handleChange"></counter>
        <counter ref="two" @change= "handleChange"></counter>
        <div>{{total}}</div>
    </div>
</body>
<script>
    Vue.component('counter',{
        template: '<div @click= "handleClick">{{number}}</div>',
        data: function () {
            return {
                number: 0
            }
        },
        methods: {
            handleClick () {
                this.number++
                this.$emit('change')
            } 
        }
    })
    var vm = new Vue({
        el: "#app",
        data: {
           total: 0
        },
        methods: {
            handleChange () {
                this.total= this.$refs.one.number+this.$refs.two.number
            }
        },
        watch:{
            
        }
    })
</script>
</html>