第一步

<u-form-item label="开始日期" prop="startTime" label-width="150">
				<u-input type="select" :select-open="start_time_show" v-model="form.startTime" placeholder="请选择" @click="start_time_show = true"></u-input>
			</u-form-item>
			<u-form-item label="结束日期" prop="endTime" label-width="150">
				<u-input type="select" :select-open="end_time_show" v-model="form.endTime" placeholder="请选择" @click="end_time_show = true"></u-input>
			</u-form-item>

第二步

	<u-picker mode="time" v-model="start_time_show" :params="params" @confirm="startTimeConfirm"></u-picker>
		<u-picker mode="time" v-model="end_time_show" :params="params" @confirm="endTimeConfirm"></u-picker>

第三步 调用方法传入日期

	//开始时间
			startTimeConfirm(e) {
				this.form.startTime = e.year + '-' + e.month + '-' + e.day + ' ' + e.hour + ':' + e.minute + ':' +
					e.second
			},
			//结束时间
			endTimeConfirm(e) {
				this.form.endTime = e.year + '-' + e.month + '-' + e.day + ' ' + e.hour + ':' + e.minute + ':' +
					e.second
			},