微信小程序- 选择器 合并时间和日期

  <picker mode="multiSelector" bindchange="bindMultiPickerChange" bindcolumnchange="bindMultiPickerColumnChange" value="{{multiIndex}}" range="{{multiArray}}">
    <input value='{{time}}' placeholder='选择时间'/>
  </picker>

const date = new Date();
const years = [];
const months = [];
const days = [];
const hours = [];
const minutes = [];
//获取年
for (let i = 2018; i <= date.getFullYear() + 5; i++) {
years.push("" + i);
}
//获取月份
for (let i = 1; i <= 12; i++) {
if (i < 10) {
  i = "0" + i;
}
months.push("" + i);
}
//获取日期
for (let i = 1; i <= 31; i++) {
if (i < 10) {
  i = "0" + i;
}
days.push("" + i);
}
//获取小时
for (let i = 0; i < 24; i++) {
if (i < 10) {
  i = "0" + i;
}
hours.push("" + i);
}
//获取分钟
for (let i = 0; i < 60; i++) {
if (i < 10) {
  i = "0" + i;
}
minutes.push("" + i);
}
Page({
data: {
  time: '',
  multiArray: [years, months, days, hours, minutes],
  multiIndex: [0, 9, 16, 10, 17],
  choose_year: '',
},
onLoad: function() {
  //设置默认的年份
  this.setData({
    choose_year: this.data.multiArray[0][0]
  })
},
//获取时间日期
bindMultiPickerChange: function(e) {
  // console.log('picker发送选择改变，携带值为', e.detail.value)
  this.setData({
    multiIndex: e.detail.value
  })
  const index = this.data.multiIndex;
  const year = this.data.multiArray[0][index[0]];
  const month = this.data.multiArray[1][index[1]];
  const day = this.data.multiArray[2][index[2]];
  const hour = this.data.multiArray[3][index[3]];
  const minute = this.data.multiArray[4][index[4]];
  // console.log(`${year}-${month}-${day}-${hour}-${minute}`);
  this.setData({
    time: year + '-' + month + '-' + day + ' ' + hour + ':' + minute
  })
  // console.log(this.data.time);
},
//监听picker的滚动事件
bindMultiPickerColumnChange: function(e) {
  //获取年份
  if (e.detail.column == 0) {
    let choose_year = this.data.multiArray[e.detail.column][e.detail.value];
    console.log(choose_year);
    this.setData({
      choose_year
    })
  }
  //console.log('修改的列为', e.detail.column, '，值为', e.detail.value);
  if (e.detail.column == 1) {
    let num = parseInt(this.data.multiArray[e.detail.column][e.detail.value]);
    let temp = [];
    if (num == 1 || num == 3 || num == 5 || num == 7 || num == 8 || num == 10 || num == 12) { //判断31天的月份
      for (let i = 1; i <= 31; i++) {
        if (i < 10) {
          i = "0" + i;
        }
        temp.push("" + i);
      }
      this.setData({
        ['multiArray[2]']: temp
      });
    } else if (num == 4 || num == 6 || num == 9 || num == 11) { //判断30天的月份
      for (let i = 1; i <= 30; i++) {
        if (i < 10) {
          i = "0" + i;
        }
        temp.push("" + i);
      }
      this.setData({
        ['multiArray[2]']: temp
      });
    } else if (num == 2) { //判断2月份天数
      let year = parseInt(this.data.choose_year);
      console.log(year);
      if (((year % 400 == 0) || (year % 100 != 0)) && (year % 4 == 0)) {
        for (let i = 1; i <= 29; i++) {
          if (i < 10) {
            i = "0" + i;
          }
          temp.push("" + i);
        }
        this.setData({
          ['multiArray[2]']: temp
        });
      } else {
        for (let i = 1; i <= 28; i++) {
          if (i < 10) {
            i = "0" + i;
          }
          temp.push("" + i);
        }
        this.setData({
          ['multiArray[2]']: temp
        });
      }
    }
    console.log(this.data.multiArray[2]);
  }
  var data = {
    multiArray: this.data.multiArray,
    multiIndex: this.data.multiIndex
  };
  data.multiIndex[e.detail.column] = e.detail.value;
  this.setData(data);
},
})