模板写法和render写法实现父组件获取子组件插槽中的数据

子组件children.vue

<template>
  <div>
    <div :key="$index" v-for="(item, $index) in list">
      <slot name="header" :item="item"
        ><div style="text-align: left">编号 {{ item.id }} 的标题</div></slot
      >
      <slot :item="item">
        <div style="text-align: left">编号 {{ item.id }} 的默认内容</div></slot
      >
    </div>
  </div>
</template>


<script>
export default {
  data() {
    return {
      list: [
        { id: 1, header: "11111" },
        { id: 2, header: "2222222" },
      ],
    };
  },
};
</script>

App.vue

<template>
  <div id="app">
    <h1>模板写法：</h1>
    <children>
      <template #default="props"
        >编号 {{ props.item.id }} 这是自定义的内容</template
      >
    </children>
    <h1>render 写法：</h1>
    <h3>如何自定义父级内容？？？？</h3>
    <main111></main111>
  </div>
</template>

<script>
import Vue from "vue";
import children from "./components/children";
Vue.component("main111", {
  render(h) {
    return h(children, {
      scopedSlots: {
        default: function (props) {
          return h("span", `编号 ${props.item.id} 这是自定义的内容`);
        },
      },
    });
  },
});

export default {
  name: "App",
  components: {
    children,
  },
};
</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>

显示效果是一样的：

 调试的codesnabox地址：https://codesandbox.io/s/old-bash-ok6hu?file=/src/App.vue