微信小程序日历选择-类似酒店预订方式有节日标识

微信小程序的日历选择，主要针对酒店选择时间段的日历，带有公历的节日。

主要函数：
通过选择入住与离店时间，记录对应的时间段，判断选择的开始时间和结束时间，通过改变背影颜色连成对应时间段。

  selectDataMarkLine: function () {
    let dateList = this.data.dateList;
    let { checkInDate, checkOutDate } = wx.getStorageSync("ROOM_SOURCE_DATE");
    let curreInid = checkInDate.substr(0, 4) + "-" + (checkInDate.substr(5, 2) < 10 ? checkInDate.substr(6, 1) : checkInDate.substr(5, 2));//选择入住的id
    let curreOutid = checkOutDate.substr(0, 4) + "-" + (checkOutDate.substr(5, 2) < 10 ? checkOutDate.substr(6, 1) : checkOutDate.substr(5, 2));//选择离店的id
    let dayIn = checkInDate.substr(8, 2) >= 10 ? checkInDate.substr(8, 2) : checkInDate.substr(9, 1);//选择入住的天id
    let dayOut = checkOutDate.substr(8, 2) >= 10 ? checkOutDate.substr(8, 2) : checkOutDate.substr(9, 1);//选择离店的天id
    let monthIn = checkInDate.substr(5, 2) >= 10 ? checkInDate.substr(5, 2) : checkInDate.substr(6, 1);//选择入店的月id
    let monthOut = checkOutDate.substr(5, 2) >= 10 ? checkOutDate.substr(5, 2) : checkOutDate.substr(6, 1);//选择离店的月id
    if (curreInid == curreOutid) {//入住与离店是当月的情况
      for (let i = 0; i < dateList.length; i++) {
        if (dateList[i].id == curreInid) {
          let days = dateList[i].days;
          for (let k = 0; k < days.length; k++) {
            if (days[k].day >= dayIn && days[k].day <= dayOut) {
              days[k].class = days[k].class + ' bgitem';
            }
            if (days[k].day == dayIn) {
              days[k].class = days[k].class + ' active';
              days[k].inday = true;
            }
            if (days[k].day == dayOut) {
              days[k].class = days[k].class + ' active';
              days[k].outday = true;
            }
          }
        }
      }
    } else {//跨月
      for (let j = 0; j < dateList.length; j++) {
        if (dateList[j].month == monthIn) {//入住的开始月份
          let days = dateList[j].days;
          for (let k = 0; k < days.length; k++) {
            if (days[k].day >= dayIn) {
              days[k].class = days[k].class + ' bgitem';
            }
            if (days[k].day == dayIn) {
              days[k].class = days[k].class + ' active';
              days[k].inday = true;
            }
          }
        } else {//入住跨月月份
          if (dateList[j].month < monthOut) {//离店中间的月份
            let days = dateList[j].days;
            for (let k = 0; k < days.length; k++) {
              days[k].class = days[k].class + ' bgitem';
            }
          } else if (dateList[j].month == monthOut) {//离店最后的月份
            let days = dateList[j].days;
            for (let k = 0; k < days.length; k++) {
              if (days[k].day <= dayOut) {
                days[k].class = days[k].class + ' bgitem';
              }
              if (days[k].day == dayOut) {
                days[k].class = days[k].class + ' active';
                days[k].outday = true;
              }
            }
          }
        }
      }
    }
    this.setData({
      dateList: dateList
    })
  },

效果图：

calendar.jpg

具体参见git仓库地址代码：https://github.com/kingbuwu/calendar