uview组件u-steps自定义描述内容

关键点slot="desc"
这点官网并没有说明

          <u-steps :current="lifeCycleList.length" activeColor="#3c9cff" direction="column">
                <u-steps-item v-for="(item, index) in lifeCycleList" :key="index" :title="item.flowName">
                    <view slot="desc" class="desc">
                        <p style="line-height: 20px;" v-if="index != 0">经办人：{{ item.operator }}</p>
                        <p>经办时间：{{ item.updateTime }}</p>
                        <p v-if="index == 1">出库单号：{{ item.odd }}</p>
                    </view>
                </u-steps-item>
            </u-steps>