vue 子组件调用父组件方法

父组件vue

<privateScoreTop :msg ="Widget" v-on:listenTochildEvent="showMessageFromChild">
</privateScoreTop>

父组件js

export default{
    data(){
return {
        }
    },
computed:{
      privateScoreTop : ()=>import("./privateScoreTop.vue")  
    },
    mounted(){
    },
methods:{
      showMessageFromChild(data){
console.log("回掉子组件成功"+data);
     }  
    }
}

子组件js

export default{
methods: {
onfilter(){
 this.$emit("listenTochildEvent",{回传参数});
},
    }
}