c#中如何获取本机用户名、MAC地址、IP地址、硬盘ID、CPU序列号、系统名称、物理内存

我们在利用C#开发桌面程序（Winform）程序的时候，

经常需要获取一些跟系统相关的信息，

以下这些代码获取能有些用处。

c#中如何获取本机用户名、MAC地址、IP地址、硬盘ID、CPU序列号、系统名称、物理内存。

首先需要引入命名空间：

using System.Management;

/// 操作系统的登录用户名：

string GetUserName()

{

    try

    {

        string st = "";

        ManagementClass mc = new ManagementClass("Win32_ComputerSystem");

        ManagementObjectCollection moc = mc.GetInstances();

        foreach (ManagementObject mo in moc)

        {

             st = mo["UserName"].ToString();

        }

        moc = null;

        mc = null;

        return st;

    }

    catch

    {

        return "unknow";

    }

    finally

    {   }

 }

//获取MAC地址：

string GetMacAddress()

{

    try

    {

        //获取网卡硬件地址

        string mac = "";

        ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");

        ManagementObjectCollection moc = mc.GetInstances();

        foreach (ManagementObject mo in moc)

        {

            if ((bool)mo["IPEnabled"] == true)

            {

                mac = mo["MacAddress"].ToString();

                break;

            }

        }

        moc = null;

        mc = null;

        return mac;

    }

    catch

    {

        return "unknow";

    }

    finally

    {   }

}

//获取IP地址：

/// <summary>

        /// 获取客户端内网IP地址

        /// </summary>

        /// <returns></returns>

        private static string getClientLocalIPAddress()

        {

            string localIP=null;

            try

            {

                IPHostEntry ipHost = System.Net.Dns.GetHostEntry(Dns.GetHostName());// Dns.Resolve(Dns.GetHostName()); ;

                IPAddress ipaddress = ipHost.AddressList[0];

                localIP = ipaddress.ToString();

                return "内网IP地址："+localIP;

            }

            catch

            {

                return "内网IP地址：unknown";

            }

            finally

            {   }

        }  

         /// <summary>

        /// 获得客户端外网IP地址

        /// </summary>

        /// <returns>IP地址</returns>

        public static string getClientInternetIPAddress()

        {

            string internetAddress = "";

            try

            {

                using (WebClient webClient = new WebClient())

                {

                    internetAddress = webClient.DownloadString("http://www.coridc.com/ip");//从外部网页获得IP地址

                    //判断IP是否合法

                    if (!System.Text.RegularExpressions.Regex.IsMatch(internetAddress, "[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}"))

                    {

                        internetAddress = webClient.DownloadString("http://fw.qq.com/ipaddress");//从腾讯提供的API中获得IP地址

                    }

                }

                return "外网IP地址：" + internetAddress;

            }

            catch

            {

                return "外网IP地址：unknown";

            }

            finally

            {   }

        }

//获取硬盘ID：

string GetDiskID()

{

    try

    {

        String HDid = "";

        ManagementClass mc = new ManagementClass("Win32_DiskDrive");

        ManagementObjectCollection moc = mc.GetInstances();

        foreach (ManagementObject mo in moc)

        {

            //HDid = (string)mo.Properties["Model"].ToString();

            HDid = (String)mo.Properties["Model"].Value.ToString();

        }

        moc = null;

        mc = null;

        return HDid;

    }

    catch

    {

        return "unknow";

    }

    finally

    {   }

}

//获取CPUid：

string GetCpuID()

{

    try

    {

        //获取CPU序列号代码

        string cpuInfo = "";//cpu序列号

        ManagementClass mc = new ManagementClass("Win32_Processor");

        ManagementObjectCollection moc = mc.GetInstances();

        foreach (ManagementObject mo in moc)

        {

            cpuInfo = mo.Properties["ProcessorId"].Value.ToString();

        }

        moc = null;

        mc = null;

        return cpuInfo;

    }

    catch

    {

        return "unknow";

    }

    finally

    {   }

}

//系统名称：

string GetSystemType()

{

    try

    {

        string st = "";

        ManagementClass mc = new ManagementClass("Win32_ComputerSystem");

        ManagementObjectCollection moc = mc.GetInstances();

        foreach (ManagementObject mo in moc)

        {

            st = mo["SystemType"].ToString();

        }

        moc = null;

        mc = null;

        return st;

    }

    catch

    {

        return "unknow";

    }

    finally

    {   }

}

//获取物理内存：

string GetTotalPhysicalMemory()

{

    try

    {

        string st = "";

        ManagementClass mc = new ManagementClass("Win32_ComputerSystem");

        ManagementObjectCollection moc = mc.GetInstances();

        foreach (ManagementObject mo in moc)

        {

            st = mo["TotalPhysicalMemory"].ToString();

        }

        moc = null;

        mc = null;

        return st;

    }

    catch

    {

        return "unknow";

    }

    finally

    {   }

}

本文转自：http://www.coridc.com/archives/2043.html