【Xcode/Swift】現在地の緯度経度を取得する

import UIKit
import CoreLocation

class ViewController: UIViewController {
    
    @IBOutlet weak var label: UILabel!
    @IBOutlet weak var button: UIButton!
    
    private var locationManager: CLLocationManager!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        button.layer.cornerRadius = 20.0
    }
    
    private func getCurrentLocation() {
        // 緯度、経度表示用のラベル
        locationManager = CLLocationManager()
        locationManager.requestWhenInUseAuthorization()
        let status = CLLocationManager.authorizationStatus()
        switch status {
        case .restricted, .denied:
            print("It's denied")
            break
        case .notDetermined:
            locationManager.delegate = self
            locationManager.distanceFilter = 10
            locationManager.startUpdatingLocation()
        case .authorizedWhenInUse, .authorizedAlways:
            locationManager.delegate = self
            locationManager.distanceFilter = 10
            locationManager?.startUpdatingLocation()
        default:
            break
        }
    }
    
    @IBAction func getCurrentLocationAction(_ sender: Any) {
        getCurrentLocation()
    }
    
}

extension ViewController: CLLocationManagerDelegate {
    // 緯度経度が変更された時に呼ばれる
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        let location = locations.first
        let latitude = location?.coordinate.latitude
        let longitude = location?.coordinate.longitude
        print("latitude: \(latitude!)\nlongitude: \(longitude!)")
        label.text = "latitude: \(latitude!)\nlongitude: \(longitude!)"
    }
    
}