vue——父组件调用子组件数据

<template>
    <div>
        child1
    </div>
</template>

<script>
    export default {
        name: "child1",
        props: "msg",
        methods: {
            handleParentClick(e) {
                console.info(e)
            }
        }
    }
</script>
parent.vue

<template>
    <div>
        <button v-on:click="clickParent">点击</button>
        <child1 ref="child1"></child1>
    </div>
</template>

<script>
    import Child1 from './child1';
    export default {
        name: "parent",
        components: {
            child1: Child1
        },
        methods: {
            clickParent() {
                // this.$refs.child1.$emit('click-child', "high");
                this.$refs.child1.handleParentClick("ssss");
            }
        }
    }
</script>