首先在添加引用中选中System.Management

再在开始部门：

using System.Management;

using System.Management.Instrumentation;

private void GetInfo()  

  {  

   string cpuInfo = "";//cpu序列号  

   ManagementClass cimobject = new ManagementClass("Win32_Processor");  

   ManagementObjectCollection moc = cimobject.GetInstances();  

   foreach(ManagementObject mo in moc)  

   {  

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

    Response.Write ("cpu序列号："+cpuInfo.ToString ());  

   }  

   //获取硬盘ID  

   String HDid;  

   ManagementClass cimobject1 = new ManagementClass("Win32_DiskDrive");  

   ManagementObjectCollection moc1 = cimobject1.GetInstances();  

   foreach(ManagementObject mo in moc1)  

   {  

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

    Response.Write ("硬盘序列号："+HDid.ToString ());  

   }  

   //获取网卡硬件地址  

   ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");  

   ManagementObjectCollection moc2 = mc.GetInstances();  

   foreach(ManagementObject mo in moc2)  

   {  

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

     Response.Write("MAC address\t{0}"+mo["MacAddress"].ToString());  

    mo.Dispose();  

   }  

  }