vue爷孙组件传参v-bind=“$attrs“ v-on=“$listeners“

孙title this.$emit(‘事件名’，要传递的值)

// title
  methods: {
   
        change(e) {
   
            console.log(e, 'e');
            this.$emit("sValue", this.sValue, this.options[0].label)
        }
    }

父 box v-bind=“$attrs"v-on="$listeners”

<div class="box-wrap">
        <Title v-bind="$attrs" v-on="$listeners"></Title>
        <div class="box">
            <slot></slot>
        </div>
    </div>

爷 index

<Box @sValue="sValue">
  </Box>

   sValue(e, e1) {
   
            console.log(e, e1, 'eee');
          }