Function getDateDifference

getDateDifference(oldDate, nowDate?, type?): number | {
    days: number;
    hours: number;
    minutes: number;
    seconds: number;
}
两个时间差距计算
Parameters
- oldDate: string | Date
  久远一点的时间
- OptionalnowDate: string | Date
  近一点的时间，默认当前时间。
- type:
      | "ALL"
      | "all"
      | "day"
      | "days"
      | "hour"
      | "hours"
      | "minute"
      | "minutes"
      | "second"
      | "seconds"
      | "DAY"
      | "DAYS"
      | "HOUR"
      | "HOURS"
      | "MINUTE"
      | "MINUTES"
      | "SECOND"
      | "SECONDS" = 'all'
  计算方式，默认计算差距的精确天数、时分秒。
Returns number | {
    days: number;
    hours: number;
    minutes: number;
    seconds: number;
}
Example
```
getDateDifference(new Date('2022-05-01'), new Date(), 'day'); /// 37
getDateDifference(new Date('2022-05-01'), new Date(), 'all'); /// {days: 37, hours: 8, minutes: 46, seconds: 47}
```