父组件

src/views/Home.vue

<template>
  <div>
    <button @click="handleClick">点击父组件，调用子组件的方法</button>

    <Child ref="child" />
  </div>
</template>

<script>
import Child from '../components/Child';

export default {
  components: {
    Child
  },
  methods: {
    handleClick(){
      this.$refs.child.inc()
    }
  }
};
</script>

子组件

src/components/Child.vue

<template>
  <div>
    <h2>Hello，长乐未央</h2>

    统计数：{{ count }}
  </div>
</tem...