text: var topic = [
      "尚未開學"
      ,
      "國定假日"
      ,
      "環境準備"
      ,
      "隨機性"
      ,
      "重複性"
      ,
      "條件判斷"
  ];
  
  
  var startDate = new Date();
  function setMonthAndDay(startMonth, startDay) {
      //一次設定好月份與日期
      startDate.setMonth(startMonth - 1, startDay);
      startDate.setHours(0);
      startDate.setMinutes(0);
      startDate.setSeconds(0);
      console.log('dfsdgsd');
  }
  var dateControl = document.querySelector('input[type="date"]');
  dateControl.value = '2021-04-01';
  setMonthAndDay(4, 1);
  
  
  
  