C#檢測電腦的一些設定通用類

using System;
using System.Management;
namespace Soyee.Comm
{
 /// <summary>
 /// Computer Information
 /// </summary>
 public class Computer
 {
  public string CpuID;
  public string MacAddress;
  public string DiskID;
  public string IpAddress;
  public string LoginUserName;
  public string ComputerName;
  public string SystemType;
  public string TotalPhysicalMemory; //單位：M
     private static Computer _instance;
  public static Computer Instance()
  {
   if (_instance == null)
    _instance = new Computer();
   return _instance;
  }
  protected  Computer()
  {
   CpuID=GetCpuID();
   MacAddress=GetMacAddress();
   DiskID=GetDiskID();
   IpAddress=GetIPAddress();
   LoginUserName=GetUserName();
   SystemType=GetSystemType();
   TotalPhysicalMemory=GetTotalPhysicalMemory();
   ComputerName=GetComputerName();
  }
  string  GetCpuID()
  {
   try
   {
    //擷取CPU序號代碼
    string cpuInfo = "";//cpu序號
    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
   {
   }
   
  }
  string  GetMacAddress()
  {
   try
   {
    //擷取網卡硬體地址
    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
   {
   }
   
  }
  string  GetIPAddress()
  {
   try
   {
    //擷取IP地址
    string st="";
    ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
    ManagementObjectCollection moc = mc.GetInstances();
    foreach(ManagementObject mo in moc)
    {
     if((bool)mo["IPEnabled"] == true)
     {
      //st=mo["IpAddress"].ToString();
      System.Array ar;
      ar=(System.Array)(mo.Properties["IpAddress"].Value);
      st=ar.GetValue(0).ToString();
      break;
     }
    }
    moc=null;
    mc=null;
    return st;
   }
   catch
   {
    return "unknow";
   }
   finally
   {
   }
   
  }
   
  string  GetDiskID()
  {
   try
   {
    //擷取硬碟ID
    String HDid="";
    ManagementClass mc = new ManagementClass("Win32_DiskDrive");
    ManagementObjectCollection moc = mc.GetInstances();
    foreach(ManagementObject mo in moc)
    {
     HDid = (string)mo.Properties["Model"].Value;
    }
    moc=null;
    mc=null;
    return HDid;
   }
   catch
   {
    return "unknow";
   }
   finally
   {
   }
    
  }

  /// <summary>
  /// 作業系統的登入使用者名稱
  /// </summary>
  /// <returns></returns>
  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
   {
   }
   
  }

  /// <summary>
  /// PC類型
  /// </summary>
  /// <returns></returns>
  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
   {
   }
   
  }

  /// <summary>
  /// 實體記憶體
  /// </summary>
  /// <returns></returns>
  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
   {
   }
  }
  /// <summary>
  /// 
  /// </summary>
  /// <returns></returns>
  string  GetComputerName()
  {
   try
   {    
    return System.Environment.GetEnvironmentVariable("ComputerName");
   }
   catch
   {
    return "unknow";
   }
   finally
   {
   }
  }

 }
}