在uni-datetime-picker组件中
calendar.vue

<template>
	<view class="uni-calendar" @mouseleave="leaveCale">

		<view v-if="!insert && show" class="uni-calendar__mask" :class="{'uni-calendar--mask-show':aniMaskShow}"
			@click="maskClick"></view>

		<view v-if="insert || show" class="uni-calendar__content"
			:class="{'uni-calendar--fixed':!insert,'uni-calendar--ani-show':aniMaskShow, 'uni-calendar__content-mobile': aniMaskShow}">
			<view class="uni-calendar__header" :class="{'uni-calendar__header-mobile' :!insert}">

				<view class="uni-calendar__header-btn-box" @click.stop="changeMonth('pre')">
					<view class="uni-calendar__header-btn uni-calendar--left"></view>
				</view>

				<picker mode="date" :value="date" fields="month" @change="bindDateChange">
					<text
						class="uni-calendar__header-text">{{ (nowDate.year||'') + yearText + ( nowDate.month||'') + monthText}}</text>
				</picker>

				<view class="uni-calendar__header-btn-box" @click.stop="changeMonth('next')">
					<view class="uni-calendar__header-btn uni-calendar--right"></view>
				</view>

				<view v-if="!insert" class="dialog-close" @click="close">
					<view class="dialog-close-plus" data-id="close"></view>
					<view class="dialog-close-plus dialog-close-rotate" data-id="close"></view>
				</view>
			</view>
			<view class="uni-calendar__box">

				<view v-if="showMonth" class="uni-calendar__box-bg">
					<text class="uni-calendar__box-bg-text">{{nowDate.month}}</text>
				</view>

				<view class="uni-calendar__weeks" style="padding-bottom: 7px;">
					<view class="uni-calendar__weeks-day">
						<text class="uni-calendar__weeks-day-text">{{SUNText}}</text>
					</view>
					<view class="uni-calendar__weeks-day">
						<text class="uni-calendar__weeks-day-text">{{MONText}}</text>
					</view>
					<view class="uni-calendar__weeks-day">
						<text class="uni-calendar__weeks-day-text">{{TUEText}}</text>
					</view>
					<view class="uni-calendar__weeks-day">
						<text class="uni-calendar__weeks-day-text">{{WEDText}}</text>
					</view>
					<view class="uni-calendar__weeks-day">
						<text class="uni-calendar__weeks-day-text">{{THUText}}</text>
					</view>
					<view class="uni-calendar__weeks-day">
						<text class="uni-calendar__weeks-day-text">{{FRIText}}</text>
					</view>
					<view class="uni-calendar__weeks-day">
						<text class="uni-calendar__weeks-day-text">{{SATText}}</text>
					</view>
				</view>

				<view class="uni-calendar__weeks" v-for="(item,weekIndex) in weeks" :key="weekIndex">
					<view class="uni-calendar__weeks-item" v-for="(weeks,weeksIndex) in item" :key="weeksIndex">

<calendar-item class="uni-calendar-item--hook" :weeks="weeks" :calendar="calendar"
	:selected="selected"  :checkHover="range" :disabledDate="disabledDate" @change="choiceDate"
	@handleMouse="handleMouse">
</calendar-item>

					</view>
				</view>
			</view>

			<view v-if="!insert && !range && hasTime" class="uni-date-changed uni-calendar--fixed-top"
				style="padding: 0 80px;">
				<view class="uni-date-changed--time-date">{{tempSingleDate ? tempSingleDate : selectDateText}}</view>
				<time-picker type="time" :start="timepickerStartTime" :end="timepickerEndTime" v-model="time"
					:disabled="!tempSingleDate" :border="false" :hide-second="hideSecond" class="time-picker-style">
				</time-picker>
			</view>

			<view v-if="!insert && range && hasTime" class="uni-date-changed uni-calendar--fixed-top">
				<view class="uni-date-changed--time-start">
					<view class="uni-date-changed--time-date">{{tempRange.before ? tempRange.before : startDateText}}
					</view>
					<time-picker type="time" :start="timepickerStartTime" v-model="timeRange.startTime" :border="false"
						:hide-second="hideSecond" :disabled="!tempRange.before" class="time-picker-style">
					</time-picker>
				</view>
				<view style="line-height: 50px;">
					<uni-icons type="arrowthinright" color="#999"></uni-icons>
				</view>
				<view class="uni-date-changed--time-end">
					<view class="uni-date-changed--time-date">{{tempRange.after ? tempRange.after : endDateText}}</view>
					<time-picker type="time" :end="timepickerEndTime" v-model="timeRange.endTime" :border="false"
						:hide-second="hideSecond" :disabled="!tempRange.after" class="time-picker-style">
					</time-picker>
				</view>
			</view>

			<view v-if="!insert" class="uni-date-changed uni-date-btn--ok">
				<view class="uni-datetime-picker--btn" @click="confirm">{{confirmText}}</view>
			</view>
		</view>
	</view>
</template>

<script>
	import { Calendar, getDate, getTime } from './util.js';
	import calendarItem from './calendar-item.vue'
	import timePicker from './time-picker.vue'

	import { initVueI18n } from '@dcloudio/uni-i18n'
	import i18nMessages from './i18n/index.js'
	const { t } = initVueI18n(i18nMessages)

	/**
	 * Calendar 日历
	 * @description 日历组件可以查看日期，选择任意范围内的日期，打点操作。常用场景如：酒店日期预订、火车机票选择购买日期、上下班打卡等
	 * @tutorial https://ext.dcloud.net.cn/plugin?id=56
	 * @property {String} date 自定义当前时间，默认为今天
	 * @property {String} startDate 日期选择范围-开始日期
	 * @property {String} endDate 日期选择范围-结束日期
	 * @property {Boolean} range 范围选择
	 * @property {Boolean} insert = [true|false] 插入模式,默认为false
	 * 	@value true 弹窗模式
	 * 	@value false 插入模式
	 * @property {Boolean} clearDate = [true|false] 弹窗模式是否清空上次选择内容
	 * @property {Array} selected 打点，期待格式[{date: '2019-06-27', info: '签到', data: { custom: '自定义信息', name: '自定义消息头',xxx:xxx... }}]
	 * @property {Boolean} showMonth 是否选择月份为背景
	 * @property {[String} defaultValue 选择器打开时默认显示的时间
	 * @event {Function} change 日期改变，`insert :ture` 时生效
	 * @event {Function} confirm 确认选择`insert :false` 时生效
	 * @event {Function} monthSwitch 切换月份时触发
	 * @example <uni-calendar :insert="true" :start-date="'2019-3-2'":end-date="'2019-5-20'"@change="change" />
	 */
	export default {


		components: {
			calendarItem,
			timePicker
		},
		props: {
			disabledDate:{
						type: Array,
						default: []
					},
			date: {
				type: String,
				default: ''
			},
			defTime: {
				type: [String, Object],
				default: ''
			},
			selectableTimes: {
				type: [Object],
				default () {
					return {}
				}
			},
			selected: {
				type: Array,
				default () {
					return []
				}
			},
			startDate: {
				type: String,
				default: ''
			},
			endDate: {
				type: String,
				default: ''
			},
      startPlaceholder: {
        type: String,
				default: ''
			},
			endPlaceholder: {
				type: String,
				default: ''
			},
			range: {
				type: Boolean,
				default: false
			},
			hasTime: {
				type: Boolean,
				default: false
			},
			insert: {
				type: Boolean,
				default: true
			},
			showMonth: {
				type: Boolean,
				default: true
			},
			clearDate: {
				type: Boolean,
				default: true
			},
			checkHover: {
				type: Boolean,
				default: true
			},
			hideSecond: {
				type: [Boolean],
				default: false
			},
			pleStatus: {
				type: Object,
				default () {
					return {
						before: '',
						after: '',
						data: [],
						fulldate: ''
					}
				}
			},
      defaultValue: {
        type: [String, Object, Array],
        default: ''
      }
		},
		data() {
			return {
				show: false,
				weeks: [],
				calendar: {},
				nowDate: {},
				aniMaskShow: false,
				firstEnter: true,
				time: '',
				timeRange: {
					startTime: '',
					endTime: ''
				},
				tempSingleDate: '',
				tempRange: {
					before: '',
					after: ''
				}
			}
		},
		watch: {
			date: {
				immediate: true,
				handler(newVal) {
					if (!this.range) {
						this.tempSingleDate = newVal
						setTimeout(() => {
							this.init(newVal)
						}, 100)
					}
				}
			},
			defTime: {
				immediate: true,
				handler(newVal) {
					if (!this.range) {
						this.time = newVal
					} else {
						this.timeRange.startTime = newVal.start
						this.timeRange.endTime = newVal.end
					}
				}
			},
			startDate(val) {
				// 字节小程序 watch 早于 created
				if(!this.cale){
					return
				}
				this.cale.setStartDate(val)
				this.cale.setDate(this.nowDate.fullDate)
				this.weeks = this.cale.weeks
			},
			endDate(val) {
				// 字节小程序 watch 早于 created
				if(!this.cale){
					return
				}
				this.cale.setEndDate(val)
				this.cale.setDate(this.nowDate.fullDate)
				this.weeks = this.cale.weeks
			},
			selected(newVal) {
				// 字节小程序 watch 早于 created
				if(!this.cale){
					return
				}
				this.cale.setSelectInfo(this.nowDate.fullDate, newVal)
				this.weeks = this.cale.weeks
			},
			pleStatus: {
				immediate: true,
				handler(newVal) {
					const {
						before,
						after,
						fulldate,
						which
					} = newVal
					this.tempRange.before = before
					this.tempRange.after = after
					setTimeout(() => {
						if (fulldate) {
							this.cale.setHoverMultiple(fulldate)
							if (before && after) {
								this.cale.lastHover = true
								if (this.rangeWithinMonth(after, before)) return
								this.setDate(before)
							} else {
								this.cale.setMultiple(fulldate)
								this.setDate(this.nowDate.fullDate)
								this.calendar.fullDate = ''
								this.cale.lastHover = false
							}
						} else {
              // 字节小程序 watch 早于 created
              if(!this.cale){
                return
              }

							this.cale.setDefaultMultiple(before, after)
							if (which === 'left' && before) {
								this.setDate(before)
								this.weeks = this.cale.weeks
							} else if(after) {
								this.setDate(after)
								this.weeks = this.cale.weeks
							}
							this.cale.lastHover = true
						}
					}, 16)
				}
			}
		},
		computed: {
			timepickerStartTime() {
				const activeDate = this.range ? this.tempRange.before : this.calendar.fullDate
				return activeDate === this.startDate ? this.selectableTimes.start : ''
			},
			timepickerEndTime() {
				const activeDate = this.range ? this.tempRange.after : this.calendar.fullDate
				return activeDate === this.endDate ? this.selectableTimes.end : ''
			},
			/**
			 * for i18n
			 */
			selectDateText() {
				return t("uni-datetime-picker.selectDate")
			},
			startDateText() {
				return this.startPlaceholder || t("uni-datetime-picker.startDate")
			},
			endDateText() {
				return this.endPlaceholder || t("uni-datetime-picker.endDate")
			},
			okText() {
				return t("uni-datetime-picker.ok")
			},
			yearText() {
				return t("uni-datetime-picker.year")
			},
			monthText() {
				return t("uni-datetime-picker.month")
			},
			MONText() {
				return t("uni-calender.MON")
			},
			TUEText() {
				return t("uni-calender.TUE")
			},
			WEDText() {
				return t("uni-calender.WED")
			},
			THUText() {
				return t("uni-calender.THU")
			},
			FRIText() {
				return t("uni-calender.FRI")
			},
			SATText() {
				return t("uni-calender.SAT")
			},
			SUNText() {
				return t("uni-calender.SUN")
			},
			confirmText() {
				return t("uni-calender.confirm")
			},
		},
		created() {
			// 获取日历方法实例
			this.cale = new Calendar({
				selected: this.selected,
				startDate: this.startDate,
				endDate: this.endDate,
				range: this.range,
			})
			// 选中某一天
			this.init(this.date)
		},
		methods: {
			leaveCale() {
				this.firstEnter = true
			},
			handleMouse(weeks) {
				if (weeks.disable) return
				if (this.cale.lastHover) return
				let {
					before,
					after
				} = this.cale.multipleStatus
				if (!before) return
				this.calendar = weeks
				// 设置范围选
				this.cale.setHoverMultiple(this.calendar.fullDate)
				this.weeks = this.cale.weeks
				// hover时，进入一个日历，更新另一个
				if (this.firstEnter) {
					this.$emit('firstEnterCale', this.cale.multipleStatus)
					this.firstEnter = false
				}
			},
			rangeWithinMonth(A, B) {
				const [yearA, monthA] = A.split('-')
				const [yearB, monthB] = B.split('-')
				return yearA === yearB && monthA === monthB
			},
			// 蒙版点击事件
			maskClick() {
        this.close()
				this.$emit('maskClose')
			},

			clearCalender() {
				if (this.range) {
					this.timeRange.startTime = ''
					this.timeRange.endTime = ''
					this.tempRange.before = ''
					this.tempRange.after = ''
					this.cale.multipleStatus.before = ''
					this.cale.multipleStatus.after = ''
					this.cale.multipleStatus.data = []
					this.cale.lastHover = false
				} else {
					this.time = ''
					this.tempSingleDate = ''
				}
				this.calendar.fullDate = ''
				this.setDate(new Date())
			},

			bindDateChange(e) {
				const value = e.detail.value + '-1'
				this.setDate(value)
			},
			/**
			 * 初始化日期显示
			 * @param {Object} date
			 */
			init(date) {
        // 字节小程序 watch 早于 created
				if(!this.cale){
					return
				}
				this.cale.setDate(date || new Date())
				this.weeks = this.cale.weeks
				this.nowDate = this.cale.getInfo(date)
        this.calendar = {...this.nowDate}
        if(!date){
          // 优化date为空默认不选中今天
          this.calendar.fullDate = ''
          if(this.defaultValue && !this.range){
            // 暂时只支持移动端非范围选择
            const defaultDate = new Date(this.defaultValue)
            const fullDate = getDate(defaultDate)
            const year = defaultDate.getFullYear()
            const month = defaultDate.getMonth()+1
            const date = defaultDate.getDate()
            const day = defaultDate.getDay()
            this.calendar = {
              fullDate,
              year,
              month,
              date,
              day
            },
            this.tempSingleDate = fullDate
            this.time = getTime(defaultDate, this.hideSecond)
          }
        }
			},
			/**
			 * 打开日历弹窗
			 */
			open() {
				// 弹窗模式并且清理数据
				if (this.clearDate && !this.insert) {
					this.cale.cleanMultipleStatus()
					this.init(this.date)
				}
				this.show = true
				this.$nextTick(() => {
					setTimeout(() => {
						this.aniMaskShow = true
					}, 50)
				})
			},
			/**
			 * 关闭日历弹窗
			 */
			close() {
				this.aniMaskShow = false
				this.$nextTick(() => {
					setTimeout(() => {
						this.show = false
						this.$emit('close')
					}, 300)
				})
			},
			/**
			 * 确认按钮
			 */
			confirm() {
				this.setEmit('confirm')
				this.close()
			},
			/**
			 * 变化触发
			 */
			change() {
				if (!this.insert) return
				this.setEmit('change')
			},
			/**
			 * 选择月份触发
			 */
			monthSwitch() {
				let {
					year,
					month
				} = this.nowDate
				this.$emit('monthSwitch', {
					year,
					month: Number(month)
				})
			},
			/**
			 * 派发事件
			 * @param {Object} name
			 */
			setEmit(name) {
        if(!this.range){
					if(!this.calendar.fullDate){
					  this.calendar = this.cale.getInfo(new Date())
					  this.tempSingleDate = this.calendar.fullDate
					}
					if(this.hasTime && !this.time) {
					  this.time = getTime(new Date(), this.hideSecond)
					}
				}
				let {
					year,
					month,
					date,
					fullDate,
					extraInfo
				} = this.calendar
				this.$emit(name, {
					range: this.cale.multipleStatus,
					year,
					month,
					date,
					time: this.time,
					timeRange: this.timeRange,
					fulldate: fullDate,
					extraInfo: extraInfo || {}
				})
			},
			/**
			 * 选择天触发
			 * @param {Object} weeks
			 */
			choiceDate(weeks) {
				if (weeks.disable) return
				this.calendar = weeks
				this.calendar.userChecked = true
				// 设置多选
				this.cale.setMultiple(this.calendar.fullDate, true)
				this.weeks = this.cale.weeks
				this.tempSingleDate = this.calendar.fullDate
				const beforeDate = new Date(this.cale.multipleStatus.before).getTime()
				const afterDate = new Date(this.cale.multipleStatus.after).getTime()
				if (beforeDate > afterDate && afterDate) {
					this.tempRange.before = this.cale.multipleStatus.after
					this.tempRange.after = this.cale.multipleStatus.before
				} else {
					this.tempRange.before = this.cale.multipleStatus.before
					this.tempRange.after = this.cale.multipleStatus.after
				}
				this.change()
			},
      changeMonth(type) {
        let newDate
        if(type === 'pre') {
          newDate = this.cale.getPreMonthObj(this.nowDate.fullDate).fullDate
        } else if(type === 'next') {
          newDate = this.cale.getNextMonthObj(this.nowDate.fullDate).fullDate
        }

        this.setDate(newDate)
				this.monthSwitch()
      },
			/**
			 * 设置日期
			 * @param {Object} date
			 */
			setDate(date) {
				this.cale.setDate(date)
				this.weeks = this.cale.weeks
				this.nowDate = this.cale.getInfo(date)
			}
		}
	}
</script>

<style lang="scss" >
	$uni-primary: #007aff !default;

	.uni-calendar {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: column;
	}

	.uni-calendar__mask {
		position: fixed;
		bottom: 0;
		top: 0;
		left: 0;
		right: 0;
		background-color: rgba(0, 0, 0, 0.4);
		transition-property: opacity;
		transition-duration: 0.3s;
		opacity: 0;
		/* #ifndef APP-NVUE */
		z-index: 99;
		/* #endif */
	}

	.uni-calendar--mask-show {
		opacity: 1
	}

	.uni-calendar--fixed {
		position: fixed;
		bottom: calc(var(--window-bottom));
		left: 0;
		right: 0;
		transition-property: transform;
		transition-duration: 0.3s;
		transform: translateY(460px);
		/* #ifndef APP-NVUE */
		z-index: 99;
		/* #endif */
	}

	.uni-calendar--ani-show {
		transform: translateY(0);
	}

	.uni-calendar__content {
		background-color: #fff;
	}

	.uni-calendar__content-mobile {
		border-top-left-radius: 10px;
		border-top-right-radius: 10px;
		box-shadow: 0px 0px 5px 3px rgba(0, 0, 0, 0.1);
	}

	.uni-calendar__header {
		position: relative;
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: row;
		justify-content: center;
		align-items: center;
		height: 50px;
	}

	.uni-calendar__header-mobile {
		padding: 10px;
		padding-bottom: 0;
	}

	.uni-calendar--fixed-top {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: row;
		justify-content: space-between;
		border-top-color: rgba(0, 0, 0, 0.4);
		border-top-style: solid;
		border-top-width: 1px;
	}

	.uni-calendar--fixed-width {
		width: 50px;
	}

	.uni-calendar__backtoday {
		position: absolute;
		right: 0;
		top: 25rpx;
		padding: 0 5px;
		padding-left: 10px;
		height: 25px;
		line-height: 25px;
		font-size: 12px;
		border-top-left-radius: 25px;
		border-bottom-left-radius: 25px;
		color: #fff;
		background-color: #f1f1f1;
	}

	.uni-calendar__header-text {
		text-align: center;
		width: 100px;
		font-size: 15px;
		color: #666;
	}

	.uni-calendar__button-text {
		text-align: center;
		width: 100px;
		font-size: 14px;
		color: $uni-primary;
		/* #ifndef APP-NVUE */
		letter-spacing: 3px;
		/* #endif */
	}

	.uni-calendar__header-btn-box {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: row;
		align-items: center;
		justify-content: center;
		width: 50px;
		height: 50px;
	}

	.uni-calendar__header-btn {
		width: 9px;
		height: 9px;
		border-left-color: #808080;
		border-left-style: solid;
		border-left-width: 1px;
		border-top-color: #555555;
		border-top-style: solid;
		border-top-width: 1px;
	}

	.uni-calendar--left {
		transform: rotate(-45deg);
	}

	.uni-calendar--right {
		transform: rotate(135deg);
	}


	.uni-calendar__weeks {
		position: relative;
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: row;
	}

	.uni-calendar__weeks-item {
		flex: 1;
	}

	.uni-calendar__weeks-day {
		flex: 1;
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: column;
		justify-content: center;
		align-items: center;
		height: 40px;
		border-bottom-color: #F5F5F5;
		border-bottom-style: solid;
		border-bottom-width: 1px;
	}

	.uni-calendar__weeks-day-text {
		font-size: 12px;
		color: #B2B2B2;
	}

	.uni-calendar__box {
		position: relative;
		// padding: 0 10px;
		padding-bottom: 7px;
	}

	.uni-calendar__box-bg {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		justify-content: center;
		align-items: center;
		position: absolute;
		top: 0;
		left: 0;
		right: 0;
		bottom: 0;
	}

	.uni-calendar__box-bg-text {
		font-size: 200px;
		font-weight: bold;
		color: #999;
		opacity: 0.1;
		text-align: center;
		/* #ifndef APP-NVUE */
		line-height: 1;
		/* #endif */
	}

	.uni-date-changed {
		padding: 0 10px;
		// line-height: 50px;
		text-align: center;
		color: #333;
		border-top-color: #DCDCDC;
		;
		border-top-style: solid;
		border-top-width: 1px;
		flex: 1;
	}

	.uni-date-btn--ok {
		padding: 20px 15px;
	}

	.uni-date-changed--time-start {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		align-items: center;
	}

	.uni-date-changed--time-end {
		/* #ifndef APP-NVUE */
    display: flex;
		/* #endif */
		align-items: center;
	}

	.uni-date-changed--time-date {
    color: #999;
		line-height: 50px;
    /* #ifdef MP-TOUTIAO */
    font-size: 16px;
    /* #endif */
		margin-right: 5px;
		// opacity: 0.6;
	}

	.time-picker-style {
		// width: 62px;
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		justify-content: center;
		align-items: center
	}

	.mr-10 {
		margin-right: 10px;
	}

	.dialog-close {
		position: absolute;
		top: 0;
		right: 0;
		bottom: 0;
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: row;
		align-items: center;
		padding: 0 25px;
		margin-top: 10px;
	}

	.dialog-close-plus {
		width: 16px;
		height: 2px;
		background-color: #737987;
		border-radius: 2px;
		transform: rotate(45deg);
	}

	.dialog-close-rotate {
		position: absolute;
		transform: rotate(-45deg);
	}

	.uni-datetime-picker--btn {
		border-radius: 100px;
		height: 40px;
		line-height: 40px;
		background-color: $uni-primary;
		color: #fff;
		font-size: 16px;
		letter-spacing: 2px;
	}

	/* #ifndef APP-NVUE */
	.uni-datetime-picker--btn:active {
		opacity: 0.7;
	}
	/* #endif */
</style>

calendar-item.vue内

<template>
	<view class="uni-calendar-item__weeks-box" :class="{
		'uni-calendar-item--disable':weeks.disable,
		'uni-calendar-item--before-checked-x':weeks.beforeMultiple,
		'uni-calendar-item--multiple': weeks.multiple,
		'uni-calendar-item--after-checked-x':weeks.afterMultiple,
		}" @click="choiceDate(weeks)" @mouseenter="handleMousemove(weeks)">
<view class="uni-calendar-item__weeks-box-item" :class="{
				'uni-calendar-item--checked':calendar.fullDate === weeks.fullDate && (calendar.userChecked || 
				!checkHover) && !disabledDate.includes(weeks.fullDate),
				'uni-calendar-item--checked-range-text': checkHover,
				'uni-calendar-item--before-checked':weeks.beforeMultiple,
				'uni-calendar-item--multiple': weeks.multiple,
				'uni-calendar-item--after-checked':weeks.afterMultiple,
				'uni-calendar-item--disable':weeks.disable,
				'uni-calendar-item--disable':disabledDate.includes(weeks.fullDate)
				}">
			<text v-if="selected&&weeks.extraInfo" class="uni-calendar-item__weeks-box-circle"></text>
			<text class="uni-calendar-item__weeks-box-text uni-calendar-item__weeks-box-text-disable uni-calendar-item--checked-text">{{weeks.date}}</text>
		</view>
		<view :class="{'uni-calendar-item--today': weeks.isToday}"></view>
	</view>
</template>

<script>
	export default {
		props: {
				disabledDate:{
						type: Array,
						default: []
					},

			weeks: {
				type: Object,
				default () {
					return {}
				}
			},
			calendar: {
				type: Object,
				default: () => {
					return {}
				}
			},
			selected: {
				type: Array,
				default: () => {
					return []
				}
			},
			checkHover: {
				type: Boolean,
				default: false
			}
		},
		methods: {
			choiceDate(weeks) {
				this.$emit('change', weeks)
			},
			handleMousemove(weeks) {
				this.$emit('handleMouse', weeks)
			}
		}
	}
</script>

<style lang="scss" >
	$uni-primary: #007aff !default;

	.uni-calendar-item__weeks-box {
		flex: 1;
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: column;
		justify-content: center;
		align-items: center;
		margin: 1px 0;
		position: relative;
	}

	.uni-calendar-item__weeks-box-text {
		font-size: 14px;
		// font-family: Lato-Bold, Lato;
		font-weight: bold;
		color: darken($color: $uni-primary, $amount: 40%);
	}

	.uni-calendar-item__weeks-box-item {
		position: relative;
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: column;
		justify-content: center;
		align-items: center;
		width: 40px;
		height: 40px;
		/* #ifdef H5 */
		cursor: pointer;
		/* #endif */
	}


	.uni-calendar-item__weeks-box-circle {
		position: absolute;
		top: 5px;
		right: 5px;
		width: 8px;
		height: 8px;
		border-radius: 8px;
		background-color: #dd524d;

	}

	.uni-calendar-item__weeks-box .uni-calendar-item--disable {
		cursor: default;
	}

	.uni-calendar-item--disable .uni-calendar-item__weeks-box-text-disable {
		color: #D1D1D1;
	}

	.uni-calendar-item--today {
		position: absolute;
		top: 10px;
		right: 17%;
		background-color: #dd524d;
		width:6px;
		height: 6px;
		border-radius: 50%;
	}

	.uni-calendar-item--extra {
		color: #dd524d;
		opacity: 0.8;
	}

	.uni-calendar-item__weeks-box .uni-calendar-item--checked {
		background-color: $uni-primary;
		border-radius: 50%;
		box-sizing: border-box;
		border: 3px solid #fff;
	}

	.uni-calendar-item--checked .uni-calendar-item--checked-text {
		color: #fff;
	}

	.uni-calendar-item--multiple .uni-calendar-item--checked-range-text {
		color: #333;
	}

	.uni-calendar-item--multiple {
		background-color:  #F6F7FC;
		// color: #fff;
	}

	.uni-calendar-item--multiple .uni-calendar-item--before-checked,
	.uni-calendar-item--multiple .uni-calendar-item--after-checked {
		background-color: $uni-primary;
		border-radius: 50%;
		box-sizing: border-box;
		border: 3px solid #F6F7FC;
	}

	.uni-calendar-item--before-checked .uni-calendar-item--checked-text,
	.uni-calendar-item--after-checked .uni-calendar-item--checked-text {
		color: #fff;
	}

	.uni-calendar-item--before-checked-x {
		border-top-left-radius: 50px;
		border-bottom-left-radius: 50px;
		box-sizing: border-box;
		background-color: #F6F7FC;
	}

	.uni-calendar-item--after-checked-x {
		border-top-right-radius: 50px;
		border-bottom-right-radius: 50px;
		background-color: #F6F7FC;
	}
</style>

uni-datetime-picker.vue内

<template>
	<view class="uni-date">
		<view class="uni-date-editor" @click="show">
			<slot>
				<view
          class="uni-date-editor--x"
          :class="{'uni-date-editor--x__disabled': disabled,'uni-date-x--border': border}"
        >
					<view v-if="!isRange" class="uni-date-x uni-date-single">
						<uni-icons class="icon-calendar" type="calendar" color="#c0c4cc" size="22"></uni-icons>
						<view class="uni-date__x-input">{{ displayValue || singlePlaceholderText }}</view>
					</view>

					<view v-else class="uni-date-x uni-date-range">
            <uni-icons class="icon-calendar" type="calendar" color="#c0c4cc" size="22"></uni-icons>
            <view class="uni-date__x-input text-center">{{ displayRangeValue.startDate || startPlaceholderText }}</view>

            <view class="range-separator">{{rangeSeparator}}</view>

            <view class="uni-date__x-input text-center">{{ displayRangeValue.endDate || endPlaceholderText }}</view>
					</view>

					<view v-if="showClearIcon" class="uni-date__icon-clear" @click.stop="clear">
						<uni-icons type="clear" color="#c0c4cc" size="22"></uni-icons>
					</view>
				</view>
			</slot>
		</view>

		<view v-show="pickerVisible" class="uni-date-mask--pc" @click="close"></view>

		<view v-if="!isPhone" v-show="pickerVisible" ref="datePicker" class="uni-date-picker__container">
			<view v-if="!isRange" class="uni-date-single--x" :style="pickerPositionStyle">
				<view class="uni-popper__arrow"></view>

				<view v-if="hasTime" class="uni-date-changed popup-x-header">
					<input class="uni-date__input text-center" type="text" v-model="inputDate"
						:placeholder="selectDateText" />

					<time-picker type="time" v-model="pickerTime" :border="false" :disabled="!inputDate"
						:start="timepickerStartTime" :end="timepickerEndTime" :hideSecond="hideSecond" style="width: 100%;">
						<input class="uni-date__input text-center" type="text" v-model="pickerTime" :placeholder="selectTimeText"
							:disabled="!inputDate" />
					</time-picker>
				</view>

				<Calendar ref="pcSingle" :showMonth="false" :start-date="calendarRange.startDate"
					:end-date="calendarRange.endDate" :date="calendarDate" @change="singleChange"
          :default-value="defaultValue"
					style="padding: 0 8px;" />

				<view v-if="hasTime" class="popup-x-footer">
					<text class="confirm-text" @click="confirmSingleChange">{{okText}}</text>
				</view>
			</view>

			<view v-else class="uni-date-range--x" :style="pickerPositionStyle">
				<view class="uni-popper__arrow"></view>
				<view v-if="hasTime" class="popup-x-header uni-date-changed">
					<view class="popup-x-header--datetime">
            <input class="uni-date__input uni-date-range__input" type="text" v-model="tempRange.startDate"
            :placeholder="startDateText" />

						<time-picker type="time" v-model="tempRange.startTime" :start="timepickerStartTime" :border="false"
            :disabled="!tempRange.startDate" :hideSecond="hideSecond">
            <input class="uni-date__input uni-date-range__input" type="text"
            v-model="tempRange.startTime" :placeholder="startTimeText"
            :disabled="!tempRange.startDate" />
          </time-picker>
        </view>

        <uni-icons type="arrowthinright" color="#999" style="line-height: 40px;"></uni-icons>

					<view class="popup-x-header--datetime">
						<input class="uni-date__input uni-date-range__input" type="text" v-model="tempRange.endDate"
							:placeholder="endDateText" />

						<time-picker type="time" v-model="tempRange.endTime" :end="timepickerEndTime" :border="false"
							:disabled="!tempRange.endDate" :hideSecond="hideSecond">
							<input class="uni-date__input uni-date-range__input" type="text" v-model="tempRange.endTime"
								:placeholder="endTimeText" :disabled="!tempRange.endDate" />
						</time-picker>
					</view>
				</view>

		<view class="popup-x-body">
			<calendar ref="left" :showMonth="false" :start-date="caleRange.startDate"
				:end-date="caleRange.endDate" :range="true" :disabledDate="disabledDate" @change="leftChange" :pleStatus="endMultipleStatus"
				@firstEnterCale="updateRightCale" @monthSwitch="leftMonthSwitch" style="padding: 0 8px;" />
			<calendar ref="right" :showMonth="false" :start-date="caleRange.startDate"
				:end-date="caleRange.endDate" :range="true" @change="rightChange"
				:pleStatus="startMultipleStatus" :disabledDate="disabledDate" @firstEnterCale="updateLeftCale"
				@monthSwitch="rightMonthSwitch" style="padding: 0 8px;border-left: 1px solid #F1F1F1;" />
		</view>

				<view v-if="hasTime" class="popup-x-footer">
					<text @click="clear">{{clearText}}</text>
					<text class="confirm-text" @click="confirmRangeChange">{{okText}}</text>
				</view>
			</view>
		</view>

		<Calendar v-if="isPhone" ref="mobile" :clearDate="false" :date="calendarDate" :defTime="mobileCalendarTime"
			:start-date="calendarRange.startDate" :end-date="calendarRange.endDate" :selectableTimes="mobSelectableTime"
      :startPlaceholder="startPlaceholder" :endPlaceholder="endPlaceholder"
      :default-value="defaultValue"
			:pleStatus="endMultipleStatus" :showMonth="false" :disabledDate="disabledDate" :range="isRange" :hasTime="hasTime" :insert="false"
			:hideSecond="hideSecond" @confirm="mobileChange" @maskClose="close" />
	</view>
</template>
<script>
	/**
	 * DatetimePicker 时间选择器
	 * @description 同时支持 PC 和移动端使用日历选择日期和日期范围
	 * @tutorial https://ext.dcloud.net.cn/plugin?id=3962
	 * @property {String} type 选择器类型
	 * @property {String|Number|Array|Date} value 绑定值
	 * @property {String} placeholder 单选择时的占位内容
	 * @property {String} start 起始时间
	 * @property {String} end 终止时间
	 * @property {String} start-placeholder 范围选择时开始日期的占位内容
	 * @property {String} end-placeholder 范围选择时结束日期的占位内容
	 * @property {String} range-separator 选择范围时的分隔符
	 * @property {Boolean} border = [true|false] 是否有边框
	 * @property {Boolean} disabled = [true|false] 是否禁用
	 * @property {Boolean} clearIcon = [true|false] 是否显示清除按钮（仅PC端适用）
	 * @property {[String} defaultValue 选择器打开时默认显示的时间
	 * @event {Function} change 确定日期时触发的事件
	 * @event {Function} maskClick 点击遮罩层触发的事件
	 * @event {Function} show 打开弹出层
	 * @event {Function} close 关闭弹出层
	 * @event {Function} clear 清除上次选中的状态和值
	 **/
	import Calendar from './calendar.vue'
	import TimePicker from './time-picker.vue'
	import { initVueI18n } from '@dcloudio/uni-i18n'
	import i18nMessages from './i18n/index.js'
  import { getDateTime, getDate, getTime, getDefaultSecond, dateCompare, checkDate, fixIosDateFormat } from './util'

	export default {
		name: 'UniDatetimePicker',
		options: {
			virtualHost: true
		},
		components: {
			Calendar,
			TimePicker
		},
		data() {
			return {
				isRange: false,
				hasTime: false,
				displayValue: '',
				inputDate: '',
				calendarDate: '',
				pickerTime: '',
				calendarRange: {
					startDate: '',
					startTime: '',
					endDate: '',
					endTime: ''
				},
				displayRangeValue: {
					startDate: '',
					endDate: '',
				},
				tempRange: {
					startDate: '',
					startTime: '',
					endDate: '',
					endTime: ''
				},
				// 左右日历同步数据
				startMultipleStatus: {
					before: '',
					after: '',
					data: [],
					fulldate: ''
				},
				endMultipleStatus: {
					before: '',
					after: '',
					data: [],
					fulldate: ''
				},
				pickerVisible: false,
				pickerPositionStyle: null,
				isEmitValue: false,
				isPhone: false,
				isFirstShow: true,
        i18nT: () => {}
			}
		},
		props: {
			disabledDate:{
						type: Array,
						default: []
					},
			type: {
				type: String,
				default: 'datetime'
			},
			value: {
				type: [String, Number, Array, Date],
				default: ''
			},
			modelValue: {
				type: [String, Number, Array, Date],
				default: ''
			},
			start: {
				type: [Number, String],
				default: ''
			},
			end: {
				type: [Number, String],
				default: ''
			},
			returnType: {
				type: String,
				default: 'string'
			},
			placeholder: {
				type: String,
				default: ''
			},
			startPlaceholder: {
        type: String,
				default: ''
			},
			endPlaceholder: {
				type: String,
				default: ''
			},
			rangeSeparator: {
				type: String,
				default: '-'
			},
			border: {
				type: [Boolean],
				default: true
			},
			disabled: {
				type: [Boolean],
				default: false
			},
			clearIcon: {
				type: [Boolean],
				default: true
			},
			hideSecond: {
				type: [Boolean],
				default: false
			},
      defaultValue: {
        type: [String, Object, Array],
        default: ''
      }
		},
		watch: {
			type: {
				immediate: true,
				handler(newVal) {
          this.hasTime = newVal.indexOf('time') !== -1
					this.isRange = newVal.indexOf('range') !== -1
				}
			},
			// #ifndef VUE3
			value: {
				immediate: true,
				handler(newVal) {
					if (this.isEmitValue) {
						this.isEmitValue = false
						return
					}
					this.initPicker(newVal)
				}
			},
			// #endif
			// #ifdef VUE3
			modelValue: {
				immediate: true,
				handler(newVal) {
					if (this.isEmitValue) {
						this.isEmitValue = false
						return
					}
					this.initPicker(newVal)
				}
			},
			// #endif
			start: {
				immediate: true,
				handler(newVal) {
					if (!newVal) return
					this.calendarRange.startDate = getDate(newVal)
					if (this.hasTime) {
						this.calendarRange.startTime = getTime(newVal)
					}
				}
			},
			end: {
				immediate: true,
				handler(newVal) {
					if (!newVal) return
					this.calendarRange.endDate = getDate(newVal)
					if (this.hasTime) {
						this.calendarRange.endTime = getTime(newVal, this.hideSecond)
					}
				}
			},
		},
		computed: {
			timepickerStartTime() {
				const activeDate = this.isRange ? this.tempRange.startDate : this.inputDate
				return activeDate === this.calendarRange.startDate ? this.calendarRange.startTime : ''
			},
			timepickerEndTime() {
				const activeDate = this.isRange ? this.tempRange.endDate : this.inputDate
				return activeDate === this.calendarRange.endDate ? this.calendarRange.endTime : ''
			},
			mobileCalendarTime() {
				const timeRange = {
					start: this.tempRange.startTime,
					end: this.tempRange.endTime
				}
				return this.isRange ? timeRange : this.pickerTime
			},
			mobSelectableTime() {
				return {
					start: this.calendarRange.startTime,
					end: this.calendarRange.endTime
				}
			},
			datePopupWidth() {
				// todo
				return this.isRange ? 653 : 301
			},

			/**
			 * for i18n
			 */
			singlePlaceholderText() {
				return this.placeholder || (this.type === 'date' ? this.selectDateText : this.selectDateTimeText)
			},
			startPlaceholderText() {
				return this.startPlaceholder || this.startDateText
			},
			endPlaceholderText() {
				return this.endPlaceholder || this.endDateText
			},
			selectDateText() {
				return this.i18nT("uni-datetime-picker.selectDate")
			},
      selectDateTimeText() {
        return this.i18nT("uni-datetime-picker.selectDateTime")
      },
			selectTimeText() {
				return this.i18nT("uni-datetime-picker.selectTime")
			},
			startDateText() {
				return this.startPlaceholder || this.i18nT("uni-datetime-picker.startDate")
			},
			startTimeText() {
				return this.i18nT("uni-datetime-picker.startTime")
			},
			endDateText() {
				return this.endPlaceholder || this.i18nT("uni-datetime-picker.endDate")
			},
			endTimeText() {
				return this.i18nT("uni-datetime-picker.endTime")
			},
			okText() {
				return this.i18nT("uni-datetime-picker.ok")
			},
			clearText() {
				return this.i18nT("uni-datetime-picker.clear")
			},
			showClearIcon() {
				return this.clearIcon && !this.disabled && (this.displayValue || (this.displayRangeValue.startDate && this.displayRangeValue.endDate))
			}
		},
		created() {
			this.initI18nT()
      this.platform()
		},
		methods: {
      initI18nT() {
        const vueI18n = initVueI18n(i18nMessages)
        this.i18nT = vueI18n.t
      },
			initPicker(newVal) {
				if ((!newVal && !this.defaultValue) || Array.isArray(newVal) && !newVal.length) {
					this.$nextTick(() => {
						this.clear(false)
					})
					return
				}

				if (!Array.isArray(newVal) && !this.isRange) {
          if(newVal){
            this.displayValue = this.inputDate = this.calendarDate = getDate(newVal)
            if (this.hasTime) {
              this.pickerTime = getTime(newVal, this.hideSecond)
              this.displayValue = `${this.displayValue} ${this.pickerTime}`
            }
          }else if(this.defaultValue){
            this.inputDate = this.calendarDate = getDate(this.defaultValue)
            if(this.hasTime){
              this.pickerTime = getTime(this.defaultValue, this.hideSecond)
            }
          }
				} else {
					const [before, after] = newVal
					if (!before && !after) return
          const beforeDate = getDate(before)
          const beforeTime = getTime(before, this.hideSecond)

          const afterDate = getDate(after)
          const afterTime = getTime(after, this.hideSecond)
					const startDate = beforeDate
					const endDate = afterDate
					this.displayRangeValue.startDate = this.tempRange.startDate = startDate
					this.displayRangeValue.endDate = this.tempRange.endDate = endDate

					if (this.hasTime) {
						this.displayRangeValue.startDate = `${beforeDate} ${beforeTime}`
						this.displayRangeValue.endDate = `${afterDate} ${afterTime}`
						this.tempRange.startTime = beforeTime
						this.tempRange.endTime = afterTime
					}
					const defaultRange = {
						before: beforeDate,
						after: afterDate
					}
					this.startMultipleStatus = Object.assign({}, this.startMultipleStatus, defaultRange, {
						which: 'right'
					})
					this.endMultipleStatus = Object.assign({}, this.endMultipleStatus, defaultRange, {
						which: 'left'
					})
				}
			},
			updateLeftCale(e) {
				const left = this.$refs.left
				// 设置范围选
				left.cale.setHoverMultiple(e.after)
				left.setDate(this.$refs.left.nowDate.fullDate)
			},
			updateRightCale(e) {
				const right = this.$refs.right
				// 设置范围选
				right.cale.setHoverMultiple(e.after)
				right.setDate(this.$refs.right.nowDate.fullDate)
			},
			platform() {
        if(typeof navigator !== "undefined"){
          this.isPhone = navigator.userAgent.toLowerCase().indexOf('mobile') !== -1
          return
        }
				const { windowWidth } = uni.getSystemInfoSync()
				this.isPhone = windowWidth <= 500
				this.windowWidth = windowWidth
			},
			show() {
				if (this.disabled) {
					return
				}
				this.platform()
				if (this.isPhone) {
					setTimeout(() => {
            this.$refs.mobile.open()
          }, 0);
					return
				}
				this.pickerPositionStyle = {
					top: '10px'
				}
				const dateEditor = uni.createSelectorQuery().in(this).select(".uni-date-editor")
				dateEditor.boundingClientRect(rect => {
					if (this.windowWidth - rect.left < this.datePopupWidth) {
						this.pickerPositionStyle.right = 0
					}
				}).exec()
				setTimeout(() => {
					this.pickerVisible = !this.pickerVisible
					if (!this.isPhone && this.isRange && this.isFirstShow) {
						this.isFirstShow = false
						const {
							startDate,
							endDate
						} = this.calendarRange
						if (startDate && endDate) {
							if (this.diffDate(startDate, endDate) < 30) {
								this.$refs.right.changeMonth('pre')
							}
						} else {
							this.$refs.right.changeMonth('next')
							if(this.isPhone){
								this.$refs.right.cale.lastHover = false;
							}
						}
					}

				}, 50)
			},
			close() {
				setTimeout(() => {
					this.pickerVisible = false
					this.$emit('maskClick', this.value)
					this.$refs.mobile && this.$refs.mobile.close()
				}, 20)
			},
			setEmit(value) {
				if (this.returnType === "timestamp" || this.returnType === "date") {
					if (!Array.isArray(value)) {
						if (!this.hasTime) {
							value = value + ' ' + '00:00:00'
						}
						value = this.createTimestamp(value)
						if (this.returnType === "date") {
							value = new Date(value)
						}
					} else {
						if (!this.hasTime) {
							value[0] = value[0] + ' ' + '00:00:00'
							value[1] = value[1] + ' ' + '00:00:00'
						}
						value[0] = this.createTimestamp(value[0])
						value[1] = this.createTimestamp(value[1])
						if (this.returnType === "date") {
							value[0] = new Date(value[0])
							value[1] = new Date(value[1])
						}
					}
				}

				this.$emit('update:modelValue', value)
				this.$emit('input', value)
				this.$emit('change', value)
				this.isEmitValue = true
			},
			createTimestamp(date) {
				date = fixIosDateFormat(date)
				return Date.parse(new Date(date))
			},
			singleChange(e) {
				this.calendarDate = this.inputDate = e.fulldate
				if (this.hasTime) return
				this.confirmSingleChange()
			},
			confirmSingleChange() {
        if(!checkDate(this.inputDate)){
					const now = new Date()
          this.calendarDate = this.inputDate = getDate(now)
					this.pickerTime = getTime(now, this.hideSecond)
        }

        let startLaterInputDate = false
        let startDate, startTime
        if(this.start) {
          let startString = this.start
          if(typeof this.start === 'number'){
            startString = getDateTime(this.start, this.hideSecond)
          }
          [startDate, startTime] = startString.split(' ')
          if(this.start && !dateCompare(startDate, this.inputDate)) {
            startLaterInputDate = true
            this.inputDate = startDate
          }
        }

        let endEarlierInputDate = false
        let endDate, endTime
        if(this.end) {
          let endString = this.end
          if(typeof this.end === 'number'){
            endString = getDateTime(this.end, this.hideSecond)
          }
          [endDate, endTime] = endString.split(' ')
          if(this.end && !dateCompare(this.inputDate, endDate)) {
            endEarlierInputDate = true
            this.inputDate = endDate
          }
        }
				if (this.hasTime) {
          if(startLaterInputDate){
            this.pickerTime = startTime || getDefaultSecond(this.hideSecond)
          }
          if(endEarlierInputDate){
            this.pickerTime = endTime || getDefaultSecond(this.hideSecond)
          }
          if(!this.pickerTime){
            this.pickerTime = getTime(Date.now(), this.hideSecond)
          }
					this.displayValue = `${this.inputDate} ${this.pickerTime}`
				} else {
          this.displayValue = this.inputDate
				}
				this.setEmit(this.displayValue)
				this.pickerVisible = false
			},
			leftChange(e) {
				const {
					before,
					after
				} = e.range
				this.rangeChange(before, after)
				const obj = {
					before: e.range.before,
					after: e.range.after,
					data: e.range.data,
					fulldate: e.fulldate
				}
				this.startMultipleStatus = Object.assign({}, this.startMultipleStatus, obj)
			},
			rightChange(e) {
				const {
					before,
					after
				} = e.range
				this.rangeChange(before, after)
				const obj = {
					before: e.range.before,
					after: e.range.after,
					data: e.range.data,
					fulldate: e.fulldate
				}
				this.endMultipleStatus = Object.assign({}, this.endMultipleStatus, obj)
			},
			mobileChange(e) {
				if (this.isRange) {
					const {before, after} = e.range

          if(!before || !after){
            return
          }

					this.handleStartAndEnd(before, after, true)
					if (this.hasTime) {
						const {
							startTime,
							endTime
						} = e.timeRange
						this.tempRange.startTime = startTime
						this.tempRange.endTime = endTime
					}
					this.confirmRangeChange()
				} else {
					if (this.hasTime) {
						this.displayValue = e.fulldate + ' ' + e.time
					} else {
						this.displayValue = e.fulldate
					}
					this.setEmit(this.displayValue)
				}
				this.$refs.mobile.close()
			},
			rangeChange(before, after) {
				if (!(before && after)) return
				this.handleStartAndEnd(before, after, true)
				if (this.hasTime) return
				this.confirmRangeChange()
			},
			confirmRangeChange() {
				if (!this.tempRange.startDate || !this.tempRange.endDate) {
					this.pickerVisible = false
					return
				}
        if(!checkDate(this.tempRange.startDate)){
          this.tempRange.startDate = getDate(Date.now())
        }
        if(!checkDate(this.tempRange.endDate)){
          this.tempRange.endDate = getDate(Date.now())
        }

				let start, end

        let startDateLaterRangeStartDate = false
        let startDateLaterRangeEndDate = false
        let startDate, startTime
        if(this.start) {
          let startString = this.start
          if(typeof this.start === 'number'){
            startString = getDateTime(this.start, this.hideSecond)
          }
          [startDate,startTime] = startString.split(' ')
          if(this.start && !dateCompare(this.start, this.tempRange.startDate)) {
            startDateLaterRangeStartDate = true
            this.tempRange.startDate = startDate
          }
          if(this.start && !dateCompare(this.start, this.tempRange.endDate)) {
            startDateLaterRangeEndDate = true
            this.tempRange.endDate = startDate
          }
        }
        let endDateEarlierRangeStartDate = false
        let endDateEarlierRangeEndDate = false
        let endDate, endTime
        if(this.end) {
          let endString = this.end
          if(typeof this.end === 'number'){
            endString = getDateTime(this.end, this.hideSecond)
          }
          [endDate,endTime] = endString.split(' ')

          if(this.end && !dateCompare(this.tempRange.startDate, this.end)) {
            endDateEarlierRangeStartDate = true
            this.tempRange.startDate = endDate
          }
          if(this.end && !dateCompare(this.tempRange.endDate, this.end)) {
            endDateEarlierRangeEndDate = true
            this.tempRange.endDate = endDate
          }
        }
				if (!this.hasTime) {
          start = this.displayRangeValue.startDate = this.tempRange.startDate
					end = this.displayRangeValue.endDate = this.tempRange.endDate
				} else {
          if(startDateLaterRangeStartDate){
            this.tempRange.startTime = startTime || getDefaultSecond(this.hideSecond)
          }else if(endDateEarlierRangeStartDate){
            this.tempRange.startTime = endTime || getDefaultSecond(this.hideSecond)
          }
          if(!this.tempRange.startTime){
            this.tempRange.startTime = getTime(Date.now(), this.hideSecond)
          }

          if(startDateLaterRangeEndDate){
            this.tempRange.endTime = startTime || getDefaultSecond(this.hideSecond)
          }else if(endDateEarlierRangeEndDate){
            this.tempRange.endTime = endTime || getDefaultSecond(this.hideSecond)
          }
          if(!this.tempRange.endTime){
            this.tempRange.endTime = getTime(Date.now(), this.hideSecond)
          }
					start = this.displayRangeValue.startDate = `${this.tempRange.startDate} ${this.tempRange.startTime}`
					end = this.displayRangeValue.endDate = `${this.tempRange.endDate} ${this.tempRange.endTime}`
				}
        if(!dateCompare(start,end)){
          [start, end] = [end, start]
        }
				this.displayRangeValue.startDate = start
				this.displayRangeValue.endDate = end
				const displayRange = [start, end]
				this.setEmit(displayRange)
				this.pickerVisible = false
			},
			handleStartAndEnd(before, after, temp = false) {
				if (!(before && after)) return

				const type = temp ? 'tempRange' : 'range'
        const isStartEarlierEnd = dateCompare(before, after)
        this[type].startDate = isStartEarlierEnd ? before : after
        this[type].endDate = isStartEarlierEnd ? after : before
    },
			/**
			 * 比较时间大小
			 */
			dateCompare(startDate, endDate) {
				// 计算截止时间
				startDate = new Date(startDate.replace('-', '/').replace('-', '/'))
				// 计算详细项的截止时间
				endDate = new Date(endDate.replace('-', '/').replace('-', '/'))
				return startDate <= endDate
			},

			/**
			 * 比较时间差
			 */
			diffDate(startDate, endDate) {
				// 计算截止时间
				startDate = new Date(startDate.replace('-', '/').replace('-', '/'))
				// 计算详细项的截止时间
				endDate = new Date(endDate.replace('-', '/').replace('-', '/'))
				const diff = (endDate - startDate) / (24 * 60 * 60 * 1000)
				return Math.abs(diff)
			},

			clear(needEmit = true) {
				if (!this.isRange) {
					this.displayValue = ''
					this.inputDate = ''
					this.pickerTime = ''
					if (this.isPhone) {
						this.$refs.mobile && this.$refs.mobile.clearCalender()
					} else {
						this.$refs.pcSingle && this.$refs.pcSingle.clearCalender()
					}
					if (needEmit) {
						this.$emit('change', '')
						this.$emit('input', '')
						this.$emit('update:modelValue', '')
					}
				} else {
					this.displayRangeValue.startDate = ''
					this.displayRangeValue.endDate = ''
					this.tempRange.startDate = ''
					this.tempRange.startTime = ''
					this.tempRange.endDate = ''
					this.tempRange.endTime = ''
					if (this.isPhone) {
						this.$refs.mobile && this.$refs.mobile.clearCalender()
					} else {
						this.$refs.left && this.$refs.left.clearCalender()
						this.$refs.right && this.$refs.right.clearCalender()
						this.$refs.right && this.$refs.right.changeMonth('next')
					}
					if (needEmit) {
						this.$emit('change', [])
						this.$emit('input', [])
						this.$emit('update:modelValue', [])
					}
				}
			}
		}
	}
</script>

<style lang="scss">
	$uni-primary: #007aff !default;

	.uni-date {
		width: 100%;
		flex: 1;
	}
	.uni-date-x {
		display: flex;
		flex-direction: row;
		align-items: center;
		justify-content: center;
		border-radius: 4px;
		background-color: #fff;
		color: #666;
		font-size: 14px;
		flex: 1;

    .icon-calendar{
      padding-left: 3px;
    }
    .range-separator{
      height: 35px;
      /* #ifndef MP */
      padding: 0 2px;
      /* #endif */
			line-height: 35px;
    }
	}

	.uni-date-x--border {
		box-sizing: border-box;
		border-radius: 4px;
		border: 1px solid #e5e5e5;
	}

	.uni-date-editor--x {
		display: flex;
		align-items: center;
		position: relative;
	}

	.uni-date-editor--x .uni-date__icon-clear {
		padding-right: 3px;
		display: flex;
		align-items: center;
		/* #ifdef H5 */
		cursor: pointer;
		/* #endif */
	}

	.uni-date__x-input {
		width: auto;
		height: 35px;
    /* #ifndef MP */
    padding-left: 5px;
    /* #endif */
		position: relative;
		flex: 1;
		line-height: 35px;
		font-size: 14px;
		overflow: hidden;
	}

	.text-center {
		text-align: center;
	}

	.uni-date__input {
		height: 40px;
		width: 100%;
		line-height: 40px;
		font-size: 14px;
	}

	.uni-date-range__input {
		text-align: center;
		max-width: 142px;
	}

	.uni-date-picker__container {
		position: relative;
	}

	.uni-date-mask--pc {
		position: fixed;
		bottom: 0px;
		top: 0px;
		left: 0px;
		right: 0px;
		background-color: rgba(0, 0, 0, 0);
		transition-duration: 0.3s;
		z-index: 996;
	}

	.uni-date-single--x {
		background-color: #fff;
		position: absolute;
		top: 0;
		z-index: 999;
		border: 1px solid #EBEEF5;
		box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
		border-radius: 4px;
	}

	.uni-date-range--x {
		background-color: #fff;
		position: absolute;
		top: 0;
		z-index: 999;
		border: 1px solid #EBEEF5;
		box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
		border-radius: 4px;
	}

	.uni-date-editor--x__disabled {
		opacity: 0.4;
		cursor: default;
	}

	.uni-date-editor--logo {
		width: 16px;
		height: 16px;
		vertical-align: middle;
	}

	/* 添加时间 */
	.popup-x-header {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: row;
	}

	.popup-x-header--datetime {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: row;
		flex: 1;
	}

	.popup-x-body {
		display: flex;
	}

	.popup-x-footer {
		padding: 0 15px;
		border-top-color: #F1F1F1;
		border-top-style: solid;
		border-top-width: 1px;
		line-height: 40px;
		text-align: right;
		color: #666;
	}

	.popup-x-footer text:hover {
		color: $uni-primary;
		cursor: pointer;
		opacity: 0.8;
	}

	.popup-x-footer .confirm-text {
		margin-left: 20px;
		color: $uni-primary;
	}

	.uni-date-changed {
		text-align: center;
		color: #333;
		border-bottom-color: #F1F1F1;
		border-bottom-style: solid;
		border-bottom-width: 1px;
	}

	.uni-date-changed--time text {
		height: 50px;
		line-height: 50px;
	}

	.uni-date-changed .uni-date-changed--time {
		flex: 1;
	}

	.uni-date-changed--time-date {
		color: #333;
		opacity: 0.6;
	}

	.mr-50 {
		margin-right: 50px;
	}

	/* picker 弹出层通用的指示小三角, todo：扩展至上下左右方向定位 */
	.uni-popper__arrow,
	.uni-popper__arrow::after {
		position: absolute;
		display: block;
		width: 0;
		height: 0;
		border: 6px solid transparent;
		border-top-width: 0;
	}

	.uni-popper__arrow {
		filter: drop-shadow(0 2px 12px rgba(0, 0, 0, 0.03));
		top: -6px;
		left: 10%;
		margin-right: 3px;
		border-bottom-color: #EBEEF5;
	}

	.uni-popper__arrow::after {
		content: " ";
		top: 1px;
		margin-left: -6px;
		border-bottom-color: #fff;
	}
</style>

完成上述修改后
组件内引用

<uni-datetime-picker  type="date"    :disabledDate="disabledDate" />