NSURLConnection GET 请求返回 -1005，“网络连接丢失”

网络连接丢失：NSURLErrorDomain Error -1005

swift
import UIKit
class ViewController: UIViewController, NSURLConnectionDelegate {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let url = URL(string: "https://www.example.com")
        let request = URLRequest(url: url!)
        
        let connection = NSURLConnection(request: request, delegate: self)
        connection?.start()
    }
    
    func connection(_ connection: NSURLConnection, didFailWithError error: Error) {
        let errorCode = (error as NSError).code
        
        if errorCode == -1005 {
            // 网络连接丢失，处理逻辑
            print("网络连接丢失")
        } else {
            // 其他错误，处理逻辑
            print("其他错误")
        }
    }
    
    // 其他NSURLConnectionDelegate方法...
}