Swift:
发出 HTTP 请求

import Foundation

let url = URL(string: "https://api.example.com/data")!
var request = URLRequest(url: url)
request.httpMethod = "GET"

let task = URLSession.shared.dataTask(with: request) { data, response, error in
    if let error = error {
        print("请求出错：\(error)")
    } else if let data = data, let dataString = String(data: data, encoding: .utf8) {
        print("响应数据：\(dataString)")
    }
}
task.resume()