非父子组件通讯-vue

<template>
  <div>
     <x-test  :bus="bus"></x-test>
     <x-right :bus="bus"></x-right>
  </div>
</template>
import Vue from ‘vue‘
export default {
  data () {
     return {
       username: ‘xissazi‘,
       bus: new Vue()
     }
  }
}

<template>
  <div>
    <button @click="add">增加</button>
  </div>
</template>
<script>
export default {
  data() {
    return {
      num: 1
    }
  },
  props: [‘bus‘],
  methods: {
    add: function () {
      let n = this.num++
      this.bus.$emit(‘otherEvent‘, n)
    }
  }
}
</script>

<template>
  <div>
    {{ num }}
  </div>
</template>
<script>
export default {
  data () {
    return {
      num: 0
    }
  },
  props:[‘name‘, ‘bus‘],
  mounted() {
    let that = this
    this.bus.$on(‘otherEvent‘, function(val){
      that.num = val
    })
  }
}
</script>