c# - 发送电子邮件通知如果在数组中找到某个值(IP 地址)

Question

我有一个 C# 控制台应用程序，如果在数组中找到任何非本地 IP 地址，我希望能够将电子邮件发送到某个地址，我假设我会使用 If != 语句，但我不能得到任何工作。任何提示或帮助将不胜感激。

    System.Net.IPAddress[] addresslist = Dns.GetHostAddresses(C);
   {
     string IPs = "";
     bool firstIP = true;
     foreach (IPAddress ip in addresslist)
         {
            if (!firstIP)
                {
                   IPs = IPs + ",";

                }
                    IPs = IPs + ip;
                    firstIP = false;
                   }
                     addresslist.ToString();
      if addresslist != { "10.1.20.99"} //example, have multiple IP's
       then //..... this is where I am stuck

Answer 1

你可以删除本地地址

var filteredIPs =  ipaddresslist.Where(p => !p.StartsWith("10.1"));

然后您可以发送一条类似sendimportantmails(String.Join(",", filteredIPs));

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