在C#中使用https进行HttpWebRequest

using System;
using System.IO;
using System.Net;
using System.Security.Cryptography.X509Certificates;

public class HttpWebRequestExample
{
    public static void Main()
    {
        // 设置请求的URL
        string url = "https://www.example.com";

        // 创建HttpWebRequest对象
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

        // 设置请求方法为GET
        request.Method = "GET";

        // 设置接受的响应类型
        request.Accept = "text/html";

        // 设置请求的超时时间（以毫秒为单位）
        request.Timeout = 10000;

        // 设置请求的代理服务器（如果需要）
        // request.Proxy = new WebProxy("http://proxy.example.com:8080");

        // 设置客户端证书（如果需要）
        // X509Certificate2 clientCertificate = new X509Certificate2("path/to/client/certificate.pfx", "password");
        // request.ClientCertificates.Add(clientCertificate);

        try
        {
            // 发起请求并获取响应
            using HttpWebResponse response = (HttpWebResponse)request.GetResponse();

            // 读取响应内容
            using Stream responseStream = response.GetResponseStream();
            using StreamReader reader = new StreamReader(responseStream);
            string responseContent = reader.ReadToEnd();

            // 输出响应内容
            Console.WriteLine(responseContent);
        }
        catch (WebException ex)
        {
            // 处理请求异常
            Console.WriteLine("Error: " + ex.Message);
        }
    }
}