如何在多个ViewControllers中使用locationManager()

import CoreLocation

class ViewController: UIViewController, CLLocationManagerDelegate {
    // ...
}

let locationManager = CLLocationManager()

override func viewDidLoad() {
    super.viewDidLoad()
    
    locationManager.delegate = self
    // ...
}

func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
    guard let location = locations.last else { return }
    
    // 处理获取到的位置信息
    // ...
}

func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
    // 处理定位错误
    // ...
}

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    
    locationManager.startUpdatingLocation()
}

override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)
    
    locationManager.stopUpdatingLocation()
}