C#获得系统信息

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;   //单位：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  
{  
//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  
{  
}  

}  
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  
{  
}  

}  
string     GetIPAddress()  
{  
try  
{  
//获取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  
{  
//获取硬盘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>  
///   操作系统的登录用户名  
///   </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类型  
///   </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>  
///   物理内存  
///   </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  
{  
}  
}  
}  
}