Question

当我启动程序时，表单会冻结，有时我会看到蓝屏并重新启动计算机。

我正在运行Windows 7 Enterprise 64并拥有Intel核心i5 2.60 GHz和8 GB RAM

如果有人知道问题是什么，那将是非常有用的，谢谢。

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e)
    {
        //IP variables
        string localIP = GetLocalIPAddress();
        string[] targetIP = new string[255];

        //Init
        System.Net.NetworkInformation.Ping pingSender = new System.Net.NetworkInformation.Ping();
        PingOptions options = new PingOptions();
        options.DontFragment = true;

        //Variables
        string data = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
        byte[] buffer = Encoding.ASCII.GetBytes(data);
        int timeout = 120;

        try
        {
            for (int i = 0; i < 255; i++)
            {
                //textbox.text example: 10.20.18.
                //i = 0 > 255
                targetIP[i] = textBox2.Text + i;      

                //send ping
                PingReply reply = pingSender.Send(targetIP[i], timeout, buffer, options);

                //if reply is successfull
                if (reply.Status == IPStatus.Success)
                {
                    textBox1.AppendText("Address: " + reply.Address + "\t ms: " + reply.RoundtripTime + "\n");
                }
            }
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
        }
    }

    public static string GetLocalIPAddress()
    {
        var host = Dns.GetHostEntry(Dns.GetHostName());
        foreach (var ip in host.AddressList)
        {
            if (ip.AddressFamily == AddressFamily.InterNetwork)
            {
                return ip.ToString();
            }
        }
        throw new Exception("Local IP Address Not Found!");
    }
}

Answer 1

Ping对象是一次性的......所以用它来释放windows资源。

            for (int i = 0; i < 255; i++)
            {
                using (System.Net.NetworkInformation.Ping pingSender = new System.Net.NetworkInformation.Ping())

                {
                    //textbox.text example: 10.20.18.
                    //i = 0 > 255
                    targetIP[i] = textBox2.Text + i;

                    //send ping
                    PingReply reply = pingSender.Send(targetIP[i], timeout, buffer, options);

                    //if reply is successfull
                    if (reply.Status == IPStatus.Success)
                    {
                        textBox1.AppendText("Address: " + reply.Address + "\t ms: " + reply.RoundtripTime + "\n");
                    }
                }

c＃程序ping电脑并获得蓝屏

1 个答案: