vue2.0/3.0中provide和inject的用法示例

<template>
  <div>
 
  </div>
</template>

<script>
export default {
  components: {
    MergeTipDialog,
    BreakNetTip
  },
  data () {
    return {
      isshow: false,
      isRouterAlive: true
  },

// 父组件中返回要传给下级的数据  可以使函数，也可以是data中的数据
  provide () {
    return {
      reload: this.reload　　　　isShow:this.isShow
    }
  },
  methods: {
    reload () {
      this.isRouterAlive = false
      this.$nextTick(() => {
        this.isRouterAlive = true
      })
    }
  }
}
</script>

<template>
  <popup-assign
    :id="id"
    @success="successHandle"
  >
    <div class="confirm-d-tit"><span class="gray-small-btn">{{ name }}</span></div>
    <strong>将被分配给</strong>
    <a
      slot="reference"
      class="unite-btn"
    >
      指派
    </a>
  </popup-assign>
</template>
<script>
import PopupAssign from '../PopupAssign'
export default {
//引用vue reload方法 内容 isShow
  inject: ['reload','isShow'],
  components: {
    PopupAssign
  },
methods: {
    async successHandle () {
      this.reload()
    }
  }
}
</script>