uniapp implements date and time picker

function withData(param){
  return param < 10 ? '0' + param : '' + param;
}
function getLoopArray(start,end){
  var start = start || 0;
  var end = end || 1;
  var array = [];
  for (var i = start; i <= end; i++) {
    array.push(withData(i));
  }
  return array;
}
function getMonthDay(year,month){
  var flag = year % 400 == 0 || (year % 4 == 0 && year % 100 != 0), array = null;

  switch (month) {
    case '01':
    case '03':
    case '05':
    case '07':
    case '08':
    case '10':
    case '12':
      array = getLoopArray(1, 31)
      break;
    case '04':
    case '06':
    case '09':
    case '11':
      array = getLoopArray(1, 30)
      break;
    case '02':
      array = flag ? getLoopArray(1, 29) : getLoopArray(1, 28)
      break;
    default:
      array = 'The month format is incorrect, please re-enter! '
  }
  return array;
}
function getNewDateArry(){
  // Processing of current time year, month, day, hour, minute, and second var newDate = new Date();
  var year = withData(newDate.getFullYear()),
      mont = withData(newDate.getMonth() + 1),
      date = withData(newDate.getDate()),
      hour = withData(newDate.getHours()),
      minu = withData(newDate.getMinutes());
      // seco = withData(newDate.getSeconds());

  return [year, mont, date, hour, minu];
}
function dateTimePicker(startYear,endYear,date) {
  // Return the default displayed array and linkage array declaration var dateTime = [], dateTimeArray = [[],[],[],[],[]];
  var start = startYear || 1978;
  var end = endYear || 2100;
 
 //Convert the passed string into an array let dataArr = date.split(" ")[0].split('/')
 let time = date.split(" ")[1].split(':')
  // Start displaying data by default. If a custom value is passed, the custom time will be used. Otherwise, the current time will be used...dataArr array deconstruction var defaultDate = date ? [...dataArr, ...time] : getNewDateArry();
 
  // Process linkage list data/*year month day hour minute second*/
  dateTimeArray[0] = getLoopArray(start,end);
  dateTimeArray[1] = getLoopArray(1, 12);
  dateTimeArray[2] = getMonthDay(defaultDate[0], defaultDate[1]);
  dateTimeArray[3] = getLoopArray(0, 23);
  dateTimeArray[4] = getLoopArray(0, 59);
  // dateTimeArray[5] = getLoopArray(0, 59);
 
 //Traverse the dateTimeArray array dateTimeArray.forEach((current,index) =>
  //Match the position of defaultDate[index] value in the current array dateTime.push(current.indexOf(defaultDate[index]))
  );

  return {
    dateTimeArray: dateTimeArray,
    dateTime: dateTime
  }
}
module.exports = {
  dateTimePicker: dateTimePicker,
  getMonthDay: getMonthDay
}

<picker mode="multiSelector" :range="dateTimeArray" v-model="dateTime" @change="change" @columnchange="columnchange">
 <view>
  //disable = "true" disables input to prevent the keyboard from popping up when clicked <input type="text" disabled="true" v-model="upTower" placeholder="Please select a time" placeholder-class="inputPlace" />
 </view>
</picker>

//Introduce the previously declared class const dateTimePicker = require('@/util/dateTimePicker.js')
 export default {
  data() {
   return {
    // Time selector dateTimeArray: null,
    dateTime: null,
    startYear: 2000,
    endYear: 2050,
   };
  },
  onLoad() {
   // Pass in the start year startYear and the end year endYear
   //Customize the start display time let arr = '2018/09/01 13:00'
   let obj = dateTimePicker.dateTimePicker(this.startYear, this.endYear,arr)
   this.dateTimeArray = obj.dateTimeArray
   this.dateTime = obj.dateTime
  },
  methods: {
   //Time format withData(param){
    return param < 10 ? '0' + param : '' + param;
   },
   change(e){
    let value = []
    e.detail.value.forEach((val,index) => {
     value.push(this.withData(val))
    })
    let dateArray = "20" + value[0] + "-" + value[1] + "-" + value[2] + " " + value[3] + ":" + value[4]
    this.upTower = dateArray
   },
   columnchange(e){
    let dateArr = this.dateTimeArray
    let arr = this.dateTime
    //Slide the data in the column and update its value arr[e.detail.column] = e.detail.value
    //Update the day of the month to display (28 or 29 or 30 or 31)
    dateArr[2] = dateTimePicker.getMonthDay(dateArr[0][arr[0]], dateArr[1][arr[1]])
    //Finally assign the latest value to dateTimeArray
    this.dateTimeArray = dateArr
    this.dateTime = arr
   },