Answer 1

慢慢学

Answer 2

import moment from 'moment';
写一个用moment的

getAllDays = (startTime, endTime) => {
    if (moment(startTime).isBefore(endTime, 'day') || moment(startTime).isSame(endTime, 'day')) {
      let configTime = moment(startTime);
      const allMonths = [configTime.format('YYYY-MM-DD')];
      while(configTime.isBefore(endTime, 'd')){
        configTime = configTime.add(1, 'd');
        allMonths.push(configTime.format('YYYY-MM-DD'));
      }
      return allMonths;
    }
    return [];
  };

Answer 3

1. 加载渲染过程
   父beforeCreate->父created->父beforeMount->子beforeCreate->子created->子beforeMount->子mounted->父mounted
2. 子组件更新过程
   父beforeUpdate->子beforeUpdate->子updated->父updated
3. 父组件更新过程
   父beforeUpdate->父updated
4. 销毁过程
   父beforeDestroy->子beforeDestroy->子destroyed->父destroyed