element 鼠标移入显示隐藏字段，并可以复制

<el-table-column :title="$t('nowan1.No3.Actuallogistics')" prop="tradeNo" :label="$t('nowan1.No3.Actuallogistics')" min-width="180">
        <!-- <el-table-column prop="Time" label="交易流水号" min-width="100px"> -->
          <!-- <template slot-scope="scope">
              {{scope.row.createTime.time}}
          </template> -->
            <template slot-scope="scope">
                    <el-popover trigger="hover" placement="top">
                    <p>{{scope.row.tradeNo}}</p>
                    <div slot="reference" class="name-wrapper">
                        <p>{{ scope.row.tradeNo }}</p>
                    </div>
                    </el-popover>
                </template>
        </el-table-column>