基于C#实现Ping工具类

using System.Net.NetworkInformation;

public class PingHelper
{
    public static string PingTest(string urlOrIp)
    {
        var pingSender = new Ping();
        var pingReply = pingSender.Send(urlOrIp, 10);
        return GetPingReplyInfo(pingReply);
    }
 
    public static string PingTest(string urlOrIp, byte[] data)
    {
        var pingSender = new Ping();
        var pingReply = pingSender.Send(urlOrIp, 10, data);
        return GetPingReplyInfo(pingReply);
    }
 
    /// <summary>
    /// 扫描局域网内有多少个ip在用
    /// </summary>
    public static string ScanLAN()
    {
        var sb = new StringBuilder();
        var pingSender = new Ping();
        // 这边要改成多线程来，实在太慢了
        for (int i = 1; i < 256; i++)
        {
            var ip = $"192.168.1.{i}";
            var reply = pingSender.Send(ip, 100);
            if (reply.Status == IPStatus.Success)
            {
                sb.AppendLine(ip);
            }
        }
        return sb.ToString();
    }
 
    private static string GetPingReplyInfo(PingReply pingReply)
    {
        var sb = new StringBuilder();
        sb.AppendLine($"IP Address:{pingReply.Address}");
        sb.AppendLine($"Status:{pingReply.Status}"); // 根据状态来判断是否可达
        sb.AppendLine($"Roundtrip Time:{pingReply.RoundtripTime}");
        sb.AppendLine($"TTL:{(pingReply.Options == null ? -1 : pingReply.Options.Ttl)}");
        sb.AppendLine($"Buffer Length:{pingReply.Buffer.Length}");
        return sb.ToString();
    }
}

var pingResult = PingHelper.PingTest("www.baidu.com");
​​​​​​​var scanResult = PingHelper.ScanLAN();