ios swift5 时间戳 时间差 日期格式 Date

 @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)

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转载自blog.csdn.net/baidu_40537062/article/details/123830006