Vue父组件调用子组件事件方法

export default {  mounted: function () {   this.$nextTick(function () {    this.$on('childMethod', function () {     console.log('监听成功')    })   })  }，  methods {    callMethod () {     console.log('调用成功')    }  }}

<child ref="child" @click="click"></child>export default {  methods: {   click () {   this.$refs.child.$emit('childMethod') // 方法1   this.$refs.child.callMethod() // 方法2  },  components: {   child: child  }}