如何创建https://xxx/1/Response?format=json&body={"operation":"list"} HttpWebRequest

using System;
using System.IO;
using System.Net;

class Program
{
    static void Main()
    {
        // 创建HttpWebRequest对象
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://xxx/1/Response?format=json&body={\"operation\":\"list\"}");
        request.Method = "GET";

        // 发送请求并获取响应
        HttpWebResponse response = (HttpWebResponse)request.GetResponse();

        // 读取响应内容
        using (StreamReader reader = new StreamReader(response.GetResponseStream()))
        {
            string responseText = reader.ReadToEnd();
            Console.WriteLine(responseText);
        }
    }
}