如何使用C#在电子邮件中创建一个分享facebook按钮？

using System;
using System.Net;
using System.Net.Mail;

class Program
{
    static void Main(string[] args)
    {
        // 创建一个电子邮件对象
        MailMessage mail = new MailMessage();

        // 设置发件人地址
        mail.From = new MailAddress("your_email@example.com");

        // 设置收件人地址
        mail.To.Add("recipient@example.com");

        // 设置邮件主题
        mail.Subject = "Check out this Facebook page!";

        // 设置邮件正文
        mail.Body = "I found an interesting Facebook page that I want to share with you.";

        // 创建一个链接到Facebook页面的按钮
        string facebookLink = "https://www.facebook.com/example_page";
        string buttonHtml = "<a href='" + facebookLink + "'>Share on Facebook</a>";

        // 将按钮添加到邮件正文中
        mail.Body += "<br><br>" + buttonHtml;

        // 创建一个SMTP客户端并发送邮件
        SmtpClient smtpClient = new SmtpClient("smtp.example.com", 587);
        smtpClient.Credentials = new NetworkCredential("your_email@example.com", "your_password");
        smtpClient.EnableSsl = true;
        smtpClient.Send(mail);

        Console.WriteLine("Email sent successfully.");
    }
}