转换格式为"19-07-2018 08:10:24"的字符串在日期和时间上都不同的字符串格式

问题描述

我想以日期时间格式转换格式为"19-07-2018 08:10:24"的字符串.如果日期是今天，那么应该是"02:12 am".如果日期是昨天，则应为昨天".否则，它应为"DD/MM/yy"格式.目前，我的时间和日期包含在字符串formate中.

I want to Convert string of format "19-07-2018 08:10:24" in date time format. If the date is today then it should be "02:12 am". If the date is of yesterday then it should be like "Yesterday". Otherwise it should be in "DD/MM/yy" format. Currently I am having the time and date in string formate.

我想要字符串类型的最终答案.如果答案是"DD/MM/YY"，则它应该为字符串格式.

I want the final answer in string type. If the answer is "DD/MM/YY", then it should be in string format.

推荐答案

使用日历日期功能:

func format(date: Date) -> String {
  let calendar = Calendar.current
  if calendar.isDateInToday(date) {
    // process your "Today" format
    return ...
  }
  if calendar.isDateInYesterday(date) {
    // process your "Yesterday" format
    return ...
  }
  if calendar.isDateInTomorrow(date) {
    // process your "Tomorrow" format
    return ...
  }
  // process your "full date/time format"
  return ...
}

您可以在此处阅读有关日历功能的更多信息: https://developer.apple.com/documentation/foundation/calendar

You can read more about the Calendar functions here: https://developer.apple.com/documentation/foundation/calendar

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