vant+vue控制列表展开

   <van-list
                    v-model="loading"
                    :finished="finished"
                    finished-text="没有更多了"
                    @load="onLoad"
                    :offset="10"
                    :immediate-check="false"
            >

                <div class="comp" v-for="(item,index) in tabledata" :class="activeClass===index?‘‘:‘comp-active‘">
                    <div class="cell"><span>组件名称：</span>{{item.component}}</div>
                    <div class="cell"><span>实例名称：</span>{{item.instance_name}}</div>
                    <div class="cell"><span>实例IP：</span>{{item.ip}}</div>
                    <div class="cell"><span>实例端口：</span>{{item.port}}</div>

                    <div class="cell expand" @click="isActive(index)" v-show="activeClass!==index">
                        <span style="float: left">...</span>
                        <van-icon name="arrow-down"/>
                    </div>

                    <div class="cell"><span>远程启停：</span>
                        <van-tag type="success" v-if="item.is_container">开启</van-tag>
                        <van-tag type="danger" v-else>关闭</van-tag>
                    </div>
                    <div class="cell"><span>启停脚本：</span>{{item.script}}</div>
                    <div class="cell"><span>日志路径：</span>{{item.logpath}}</div>
                    <div class="cell expand" @click="activeClass=-1">
                        <van-icon name="arrow-up"/>
                    </div>
                </div>

            </van-list>

 data() {
      return {
        activeClass: -1,// 0为默认选择第一个，-1为不选择
      }
    },
    methods: {
      isActive(index){
        this.activeClass = index;
      },