C# 读取驱动器盘符及信息

 System.IO.DriveInfo[] hardDiskDrives = System.IO.DriveInfo.GetDrives();
             foreach (System.IO.DriveInfo hardDiskDrive in hardDiskDrives)
             {
                 if(hardDiskDrive.DriveType.ToString() != "CDRom")
                 {
                     totalSize = hardDiskDrive.TotalSize / ( *  * );
                     totalFreeSpace = hardDiskDrive.TotalFreeSpace / ( *  * );
                     textBoxDisksVolumn.Text += hardDiskDrive.Name + " " + totalSize.ToString() + "GB   ";
                     textBoxAvalaibleSpace.Text += hardDiskDrive.Name + " " + totalFreeSpace.ToString() + "GB   ";
                 }
             }