C# 读取硬盘信息类

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在编写工具检查硬盘信息时，总结常用到的类：

Win32_DiskDrive

这个用了检查整个硬盘的信息，如果电脑只有一个硬盘，那只显示一条信息。参考如下代码，AddTextBox为自定义显示函数。（MSDN class 查询：https://msdn.microsoft.com/en-us/library/aa394132(v=vs.85).aspx）

 ManagementClass mc = new ManagementClass("Win32_DiskDrive");      ManagementObjectCollection moc = mc.GetInstances();

foreach (ManagementObject mo in moc)                    {                        AddTextBox(">>硬盘详细信息----------------------------------------------------------");                                             AddTextBox("Model:  " + Convert.ToString(mo.Properties["Model"].Value));  //name stata 256                        AddTextBox("Description:  " + Convert.ToString(mo.Properties["Description"].Value));  //diskdriver                        AddTextBox("InterfaceType:  " + Convert.ToString(mo.Properties["InterfaceType"].Value));  //scsi                        AddTextBox("MediaType:  " + Convert.ToString(mo.Properties["MediaType"].Value));    //fixed hard disk                        string strSize=Convert.ToString( mo.Properties["Size"].Value);                                                AddTextBox("size:"+Convert.ToString( mo.Properties["Size"].Value)+"KB");                        var aaa = Convert.ToString( mo.Properties["Size"].Value);                        UInt64 bbb=UInt64.Parse(aaa);                                                 totalsise = (float)Math.Round(bbb / 1000 / 1000 / 1000.0, 3);                         totalsise2 = (float)Math.Round(bbb / 1024 / 1024 / 1024.0, 3);                        AddTextBox("size(除1000):  " + totalsise.ToString()+"GB");                        AddTextBox("size(除1024):  " + totalsise2.ToString() + "GB");                    }

Win32_Volume

当检查C盘，D盘或光盘，可以用到这个class，DriverLetter显示C:\，D:\等。通过查看DriverType的数值能判定当前盘符是哪种类型。参考：https://msdn.microsoft.com/en-us/library/aa394515(v=vs.85).aspx

     ManagementObjectSearcher deviceList = new ManagementObjectSearcher("Select DriveLetter, DeviceID,DriveType,Name from Win32_Volume ");             foreach (ManagementObject device in deviceList.Get())             {                 string name = Convert.ToString(device.GetPropertyValue("DriveLetter"));                 string DriveType = Convert.ToString(device.GetPropertyValue("DriveType"));                 if (DriveType == "3" && name != "")                 {                    //..                 }             }

DriveInfo.GetDrives()

这个函数功能和上面Win32_Volume功能类似，但没Win32_Volume那么多信息查询。优点在于用起来方便，易懂，官方已经给出例子：（https://msdn.microsoft.com/zh-cn/library/system.io.driveinfo.getdrives.aspx）

        DriveInfo[] allDrives = DriveInfo.GetDrives();        foreach (DriveInfo d in allDrives)        {            Console.WriteLine("Drive {0}", d.Name);            Console.WriteLine("  Drive type: {0}", d.DriveType);            if (d.IsReady == true)            {                Console.WriteLine("  Volume label: {0}", d.VolumeLabel);                Console.WriteLine("  File system: {0}", d.DriveFormat);                Console.WriteLine(                    "  Available space to current user:{0, 15} bytes",                     d.AvailableFreeSpace);                Console.WriteLine(                    "  Total available space:          {0, 15} bytes",                    d.TotalFreeSpace);                Console.WriteLine(                    "  Total size of drive:            {0, 15} bytes ",                    d.TotalSize);            }        }

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