<scroll-view class="scroll-view_H" scroll-x>
    <view class='list' style='width:{{ width }}rpx'>
      <view bindtap="select" wx:for="{{ calendar }}" wx:key="" wx:for-item="item" wx:for-index="index" data-index="{{ index }}" class='listItem {{index==currentIndex? "current":""}}'>
        <text class='name'>{{ item.week }}</text>
        <text class='date'>{{ item.date }}</text>
      </view>
    </view>
  </scroll-view>
 

function getThisMonthDays(year, month) {
      return new Date(year, month, 0).getDate();
    }
    // 計算每月第一天是星期幾
    function getFirstDayOfWeek(year, month) {
      return new Date(Date.UTC(year, month - 1, 1)).getDay();
    }
    const date = new Date();
    const cur_year = date.getFullYear();
    const cur_month = date.getMonth() + 1;
    const cur_date = date.getDate();
    const weeks_ch = ['日', '一', '二', '三', '四', '五', '六'];
    //利用建構函式建立物件
    function calendar(date, week) {
      this.date = cur_year + '-' + cur_month + '-' + date;
      if (date == cur_date) {
        this.week = "今天";
      } else if (date == cur_date + 1) {
        this.week = "明天";
      } else {
        this.week = '星期' + week;
      }
    }
    //當前月份的天數
    var monthLength = getThisMonthDays(cur_year, cur_month)
    //當前月份的第一天是星期幾
    var week = getFirstDayOfWeek(cur_year, cur_month)
    var x = week;
    for (var i = 1; i <= monthLength; i++) {
      //當迴圈完一週後，初始化再次迴圈
      if (x > 6) {
        x = 0;
      }
      //利用建構函式建立物件
      that.data.calendar[i] = new calendar(i, [weeks_ch[x]][0])
      x++;
    }
    //限制要渲染的日曆資料天數為7天以內（使用者體驗）
    var flag = that.data.calendar.splice(cur_date, that.data.calendar.length - cur_date <= 7 ? that.data.calendar.length : 7)
    that.setData({
      calendar: flag
    })
    selectd = flag;
    // console.log(selectd);
    var ret_id = [];
    const lengths = selectd.length
    for (let i = 0; i < lengths; i++) {
      ret_id[i] = selectd[i].date;
    }
    choosedate = ret_id[0];
    //設定scroll-view的子容器的寬度
    that.setData({
      width: 186 * parseInt(that.data.calendar.length - cur_date <= 7 ? that.data.calendar.length : 7)
    })
 

/*日曆開始  */


scroll-view{
  height: 128rpx;
  width: 101%;
  position:fixed;
  top:355rpx;

}
scroll-view .list{
  display: flex;
  flex-wrap: nowrap;
  justify-content: flex-start;
}
scroll-view .listItem{
  text-align: center;
  width:187rpx;
  height: 128rpx;
  background: #f4f4f4;
  padding-top: 30rpx;
  box-sizing: border-box;
  display: inline-block;
}
scroll-view .listItem text{
  display: block;
}
scroll-view .listItem .name{
  font-size: 25rpx;
}
scroll-view .listItem .date{
  font-size: 25rpx;
}
scroll-view .current{
    background-color:pink;
     width:200rpx;
    position:relative;
}
scroll-view .current text{
  color: #fff;
}