ios host域名解析

nslookup www.example.com

import UIKit

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let urlString = "https://www.example.com"
        guard let url = URL(string: urlString) else {
            print("Invalid URL")
            return
        }
        
        let task = URLSession.shared.dataTask(with: url) { data, response, error in
            if let error = error {
                print("Error: \(error.localizedDescription)")
                return
            }
            
            guard let data = data else {
                print("No data received")
                return
            }
            
            print("Data received: \(data)")
        }
        
        task.resume()
    }
}