如何使用NSDate在Swift 3中获得时间(小时，分钟，秒)? [英] How to get time (hour, minute, second) in Swift 3 using NSDate?

问题描述

如何从Swift 3的NSDate类中确定小时，分钟和秒?

How can you determine the hour, minute and second from NSDate class in Swift 3?

在Swift 2中:

let date = NSDate()
let calendar = NSCalendar.currentCalendar()
let components = calendar.components(.Hour, fromDate: date)
let hour = components.hour

雨燕3?

推荐答案

在 Swift 3.0 中，Apple删除了"NS"前缀，并使一切变得简单.下面是从日期"类获取小时，分钟和秒的方法(备用NSDate)

In Swift 3.0 Apple removed 'NS' prefix and made everything simple. Below is the way to get hour, minute and second from 'Date' class (NSDate alternate)

let date = Date()
let calendar = Calendar.current

let hour = calendar.component(.hour, from: date)
let minutes = calendar.component(.minute, from: date)
let seconds = calendar.component(.second, from: date)
print("hours = \(hour):\(minutes):\(seconds)")

像这些一样，您可以通过传递相应的信息来获取时代，年，月，日等.

Like these you can get era, year, month, date etc. by passing corresponding.

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