@objc func chooseDate(_ datePicker:UIDatePicker) {
let chooseDate = datePicker.date
let dateFormater = DateFormatter.init()
dateFormater.dateFormat = "YYYY-MM-dd"
selectedStr = dateFormater.string(from: chooseDate);
let now = Date()
let interval:Int = Int(now.timeIntervalSince(chooseDate))
age = interval/(365*24*60*60)
}
参考博客:
Swift - Date、时间戳、以及日期格式的转换(一)