第一種是使用期間獲取位置：

Info.plist裡面新增Privacy - Location When In Use Usage Description及描述文字比如：XX想使用您的地理位置資訊

調起詢問使用者：locationManager.requestWhenInUseAuthorization()

第二種是始終獲取位置：

1.選中專案Target->Capabilities->開啟Background Modes開關->勾選Location updates；

2.Info.plist裡面新增Privacy - Location Always and When In Use Usage Description

調起詢問使用者：locationManager.requestAlwaysAuthorization()

程式碼：

import CoreLocation

class ViewController: UIViewController, CLLocationManagerDelegate {
    var locationManager = CLLocationManager()
    override func viewDidLoad() {
        super.viewDidLoad()
        locationManager.
 
delegate = self
            
        //使用期間獲取位置
//        locationManager.requestWhenInUseAuthorization()
        
        //始終獲取位置
        locationManager.requestAlwaysAuthorization()

        locationManager.startUpdatingLocation()
    }
    
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        guard let  location 
 
= locations.last else {
            return
        }
        let latitude = location.coordinate.latitude
        let longitude = location.coordinate.longitude
   
        print(String(format: "latitude = %.4f, longitude = %.4f", latitude, longitude))
    }
    
    func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
        print(error)
    }