javascript - <transition-group> children must be keyed: <ElTag> 饿了么报错？

Question

Answer 1

已经提示的很明显了，<transition-group>里的组件要加上key属性

<transition-group name="list" tag="p">
    <span v-for="item in items" v-bind:key="item" class="list-item">
      {{ item }}
    </span>
  </transition-group>