c#获取系统所在硬盘的序列号，需要的拿走，不客气

[ijunxiong]

原问：http://zhidao.baidu.com/question/329940952509262445.html

//获取系统所在硬盘的序列号
public static string GetSystemDiskNo()
{
ManagementClass cimObject = new ManagementClass("Win32_PhysicalMedia");
ManagementObjectCollection moc = cimObject.GetInstances();
Dictionary<string, string> dict = new Dictionary<string, string>();
foreach (ManagementObject mo in moc)
{
string tag = mo.Properties["Tag"].Value.ToString().ToLower().Trim();
string hdId = (string)mo.Properties["SerialNumber"].Value ?? string.Empty;
hdId = hdId.Trim();
dict.Add(tag, hdId);
}
cimObject = new ManagementClass("Win32_OperatingSystem");
moc = cimObject.GetInstances();
string currentSysRunDisk = string.Empty;
foreach (ManagementObject mo in moc)
{
currentSysRunDisk = Regex.Match(mo.Properties["Name"].Value.ToString().ToLower(), @"harddisk\d+").Value;
}
var results = dict.Where(x => Regex.IsMatch(x.Key, @"physicaldrive" + Regex.Match(currentSysRunDisk, @"\d+$").Value));
if (results.Any()) return results.ElementAt(0).Value;
return "";
}

[linlin_Money]