vant移动端日历组件如何设置后端传过来的日期才可选

<template>
  <div id="homeBox">
    <van-cell title="选择多个日期" @click="show = true" />
    <van-calendar
      v-model="show"
      :formatter="formatter"
      :min-date="minDate"
      :max-date="maxDate"
      @confirm="onConfirm"
    />
  </div>
</template>
<script>
export default {
  data() {
    return {
      show: false,
      minDate: new Date(2010, 0, 1), //可选最早时间
      maxDate: new Date()
    };
  },
  mounted() {
    this.getDateList();
  },
  methods: {
    //这边主要处理不可选日期的禁选变灰
    formatter(day) {
      // console.log(this.$store.state.datelist);
      var now = new Date(day.date);
      var year = now.getFullYear(); //得到年份
      var month = now.getMonth(); //得到月份
      var date = now.getDate(); //得到日期
      month = month + 1;
      if (month < 10) month = '0' + month;
      if (date < 10) date = '0' + date;
      var time = year + '-' + month + '-' + date; //（格式化"yyyy-MM-dd"）
      if (this.$store.state.datelist.includes(time)) {
        // return time;
        // console.log(day.date);
      } else { 
        day.type = 'disabled';
      }
      return day
    },

    //格式化日期
    formatDate(date) {
      console.log(date);
      return `${date.getFullYear()}/${date.getMonth() + 1}/${date.getDate()}`;
    },

    //点击确认按钮获取所选日期
    onConfirm(date) {
      console.log(this.formatDate(date));
      this.show = false;
    }, 

    // 获取可选时间
    getDateList() {
      let that = this;
      that.$axios.get('可选日期的接口').then((res) => {
        const list_date = res.data.ResultData;
        that..datelist = [...list_date];
      });
    }
  }
};
</script>