在swift中通过编码按钮/功能发送数据

import UIKit

class ViewController: UIViewController {
    
    @IBOutlet weak var sendButton: UIButton!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        sendButton.addTarget(self, action: #selector(sendData), for: .touchUpInside)
    }
    
    @objc func sendData() {
        let dataString = "Hello, World!" // 要发送的数据
        
        if let encodedData = dataString.data(using: .utf8)?.base64EncodedData() {
            let url = URL(string: "https://example.com/api")! // 请求的URL
            
            var request = URLRequest(url: url)
            request.httpMethod = "POST"
            request.httpBody = encodedData
            
            let task = URLSession.shared.dataTask(with: request) { (data, response, error) in
                if let error = error {
                    print("发送数据失败：\(error)")
                    return
                }
                
                // 处理响应结果
                if let data = data {
                    let responseString = String(data: data, encoding: .utf8)
                    print("接收到的响应数据：\(responseString ?? "")")
                }
            }
            
            task.resume()
        }
    }
}