Vue组件通信方式2 - 自定义事件

父组件 App.vue

<template>
  <div id="app">
    <!-- 父组件的@btnClick与子组件$emit的btnClick名字相同 -->
    <Emit @btnClick='deleteP'/>
    <p ref='word'>我是被删的那个</p>
  </div>
</template>

<script>
import Emit from './components/Emit.vue';

export default {
  name: 'App',
  components: {
    Emit
  },
  data(){
    return{
    }
  },
  methods:{
    //通过args接收子组件传来的参数
    deleteP(args){
      console.log('我接收到子组件传递的事件了')
      console.log(args);
      //refs拿到节点的唯一word值
      this.$refs.word.remove();
    }
  }
}
</script>

<style>
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}
</style>

子组件 components/Emit.vue

<template>
  <div class="hello">
    <button @click="say">删除父组件的p标签</button>
  </div>
</template>

<script>
export default {
  name: 'Emit',
  methods: {
    say(){
      console.log("明天不上班");
      // 绑定父组件 自定义@btnClick事件
      this.$emit('btnClick',{name:'理子', sex:'男'})
    }
  }
}
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
h3 {
  margin: 40px 0 0;
}
ul {
  list-style-type: none;
  padding: 0;
}
li {
  display: inline-block;
  margin: 0 10px;
}
a {
  color: #42b983;
}
</style>