bus-案例 - weakup

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        .item {
            overflow: hidden;
            padding: 10px;
            width: 400px;
            border:1px solid red;
        }

        .item img {
            width: 100px;
            float: left;

        }
        .film{
            border:1px solid black;
            height: 1500px;
        }

        .filminfo {
            width: 300px;
            min-height: 200px;
            background: yellow;
            position: fixed;
            right:50px;
            top:100px;
            border:1px solid blue;
        }
    </style>
    <script src="lib/vue.js"></script>

</head>

<body>
    <div id="box">
        <button @click="handleAjax">ajax</button>
        
        <film-item v-for="item in datalist" :key="item.filmId" :mydata="item"></film-item>

        <film-detail ></film-detail>
    </div>
    <script>

        var bus = new Vue()
        // bus.$on
        // bus.$emit
        Vue.component("filmItem",{
            props:["mydata"],
            template:`
                <div class="item">
                    <img :src="mydata.poster"/>
                    {{mydata.name}}
                    <div>
                        <button @click="handleClick">详情</button>
                    </div>
                </div>
            `,
            methods:{
                handleClick(){
                    // console.log(this.mydata.synopsis)

                    bus.$emit("kerwin",this.mydata.synopsis)
                }
            }
        })

        Vue.component("filmDetail",{
            //组件刚刚创建好，就开始订阅
            data(){
                return {
                    info:""
                }
            },
            //生命周期
            mounted(){
                // console.log("当前组件上树后触发")
                bus.$on("kerwin",(data)=>{
                    console.log("1111111",data)
                    this.info = data
                })
            },

            template:`
                <div class="filminfo">
                    {{info}}
                </div>  
            `
        })



        new Vue({
            el:"#box",
            data:{
                datalist:[],
            },
            methods:{
                handleAjax(){
                    fetch("./json/test.json")
                        .then(res=>res.json())
                        .then(res=>{
                            console.log(res.data.films)
                            this.datalist = res.data.films
                        })
                }
            }
        })
       
    </script>
</body>

</html>
posted on 2022-03-27 16:57 weakup 阅读(22) 评论(0) 收藏举报
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