与传递查询参数的C# Http成角度

using System;
using System.Net.Http;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        using (HttpClient client = new HttpClient())
        {
            // 构建查询参数
            var queryParameters = new System.Collections.Specialized.NameValueCollection();
            queryParameters.Add("param1", "value1");
            queryParameters.Add("param2", "value2");

            // 构建查询参数字符串
            var queryString = System.Web.HttpUtility.ParseQueryString(string.Empty);
            queryString.Add(queryParameters);

            // 构建完整的URL
            var url = "https://example.com/api/endpoint?" + queryString.ToString();

            // 发送GET请求
            HttpResponseMessage response = await client.GetAsync(url);

            // 处理响应
            if (response.IsSuccessStatusCode)
            {
                string responseBody = await response.Content.ReadAsStringAsync();
                Console.WriteLine(responseBody);
            }
            else
            {
                Console.WriteLine("请求失败: " + response.StatusCode);
            }
        }
    }
}