如何在Swift中获取两个日期之间的天数？

本文介绍了如何在Swift中获取两个日期之间的天数？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

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Consider that we have a function signature as:

func datesRange(from: Date, to: Date) -> [Date]

应从开始使用和至日期实例，并返回一个数组，其中包含其参数之间的日期（天）。

which should take from date and to date instances and returns an array containing the dates (days) between its parameters. How to achieve it?

推荐答案

您可以这样实现：

func datesRange(from: Date, to: Date) -> [Date] { // in case of the "from" date is more than "to" date, // it should returns an empty array: if from > to { return [Date]() } var tempDate = from var array = [tempDate] while tempDate < to { tempDate = Calendar.current.date(byAdding: .day, value: 1, to: tempDate)! array.append(tempDate) } return array }

用法：

let today = Date() let nextFiveDays = Calendar.current.date(byAdding: .day, value: 5, to: today)! let myRange = datesRange(from: today, to: nextFiveDays) print(myRange) /* [2018-03-20 14:46:03 +0000, 2018-03-21 14:46:03 +0000, 2018-03-22 14:46:03 +0000, 2018-03-23 14:46:03 +0000, 2018-03-24 14:46:03 +0000, 2018-03-25 14:46:03 +0000] */