uniapp picker实现选择年月demo效果(整理)

<template>
  <view style="margin-top: 200rpx;">
    <view>
      <picker :range="years" :value="echoVal" @change="yearChange" mode="multiSelector">
        {{ years[0][yearsIndex1] }}-{{ years[1][yearsIndex2] }}
      </picker>
    </view>
  </view>
  </view>
</template>
<script>
  export default {
    data() {
      return {
        years: [],
        yearsIndex1: 0,
        yearsIndex2: 0,
        echoVal: [], //当前日期回显
      }
    },
    // 页面加载
    onLoad(e) {
      var date = new Date();
      var year = date.getFullYear(); //获取完整的年份(4位)
      var month = date.getMonth() + 1; //获取当前月份(0-11,0代表1月)
      var nowDay = date.getDate(); //获取当前日(1-31)
      this.yearsIndex1 = year - 1500; //回显年
      this.yearsIndex2 = month - 1; //回显月
      let numbers = [];
      for (let i = 1500; i <= 2999; i++) {
        numbers.push(i);
      }
      var arr = ['01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12'];
      this.years.push(numbers); //下拉组合
      this.years.push(arr); //下拉组合
      this.echoVal.push(year - 1500); //回显年
      this.echoVal.push(month - 1); //回显月
    },
    methods: {
      yearChange: function(e) {
        console.log(e)
        //获得对象的 detail的 value
        //通过数组的下标改变显示在页面的值
        this.yearsIndex1 = e.detail.value[0];
        this.yearsIndex2 = e.detail.value[1];
      }
    }
  }
</script>
<style>
</style>