v-for同一接口实现循环嵌套

    <div class="item" v-for="(item,index) in regionlist" :key="index">
        <div class="introduce">
          <div class="title">{{item.title}}</div>
          <span>{{item.intro}}</span>
        </div>
        <div class="item_img">
          <div v-="(item,index) i