从cocoa应用程序访问Web服务器

import Foundation

func fetchDataFromServer(url: URL, completion: @escaping (Data?, URLResponse?, Error?) -> Void) {
    let task = URLSession.shared.dataTask(with: url) { (data, response, error) in
        completion(data, response, error)
    }
    task.resume()
}

let url = URL(string: "https://your-web-server.com/api/endpoint")!

fetchDataFromServer(url: url) { (data, response, error) in
    if let error = error {
        print("Error fetching data: \(error.localizedDescription)")
    } else if let data = data {
        // 处理从Web服务器返回的数据
        print("Data fetched: \(data)")
    }
}