第一步

<u-form-item label="结束时间" prop="endDate" label-width="200"><u-input type="select" v-model="form.endDate" placeholder="请选择" @click="end_time_show = true"></u-input><u-picker mode="time" v-model="end_time_show" @confirm="confirm2" :params="params"></u-picker></u-form-item>

第二步

confirm2(e) {console.log(e);let date = e.year + '-' + e.month + '-' + e.day + " " + e.hour + ':' + e.minute + ':' + e.secondthis.form.endDate = date},