将天、月或年添加到当前日期. Swift

添加日期

Swift

添加日期和时间

Swift

import UIKit
class ViewController: UIViewController {
    
    override func viewDidLoad()
    {
        super.viewDidLoad()
 
        let monthsToAdd = 2
        let daysToAdd = 1
        let yearsToAdd = 1
        let currentDate = getCurrentDate()
 
        var dateComponent = DateComponents()
        
        dateComponent.month = monthsToAdd
        dateComponent.day = daysToAdd
        dateComponent.year = yearsToAdd
        
        let futureDate = Calendar.current.date(byAdding: dateComponent, to: currentDate)
        
        print(currentDate)
        print(futureDate!)
  
    }
    
    func getCurrentDate()-> Date {
        var now = Date()
        var nowComponents = DateComponents()
        let calendar = Calendar.current
        nowComponents.year = Calendar.current.component(.year, from: now)
        nowComponents.month = Calendar.current.component(.month, from: now)
        nowComponents.day = Calendar.current.component(.day, from: now)
        nowComponents.hour = Calendar.current.component(.hour, from: now)
        nowComponents.minute = Calendar.current.component(.minute, from: now)
        nowComponents.second = Calendar.current.component(.second, from: now)
        nowComponents.timeZone = NSTimeZone.local
        now = calendar.date(from: nowComponents)!
        return now as Date
    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()

}
    
}

Swift

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将天、月或年添加到当前日期. Swift

Swift

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