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WMI是一個(gè)強(qiáng)大的技術(shù)：只需要簡(jiǎn)單的指定一個(gè)WMI類(lèi)名就能返回它類(lèi)的所有實(shí)例：

復(fù)制代碼代碼如下:

PS> Get-WmiObject -Class Win32_BIOS

SMBIOSBIOSVersion : 76CN27WW
Manufacturer      : LENOVO
Name              : 76CN27WW
SerialNumber      : 1006250300406
Version           : LENOVO - 1

你如何知道它有哪些類(lèi)呢？這里有一款查找工具：

復(fù)制代碼代碼如下:

function Find-WMIClass

{

   param

   (

      [Parameter(Mandatory=$true)]

      $SearchTerm = 'Resolution'

   )

   Get-WmiObject -Class * -List | 

   Where-Object { $_.Properties.Count -ge 3 } |

   Where-Object { $_.Name -notlike 'Win32_Perf*'  } |

   Where-Object {

      $ListOfNames = $_.Properties | Select-Object -ExpandProperty Name

      ($ListOfNames -like "*$SearchTerm*") -ne $null

   } |

   Sort-Object -Property Name  

}

設(shè)置搜索條件后，代碼將搜索出包含指定屬性名的類(lèi)（還可以通過(guò)通配符擴(kuò)大搜索范圍）

下面將找出所有包含“resolution”結(jié)尾的WMI類(lèi)：

復(fù)制代碼代碼如下:

PS> Find-WMIClass -SearchTerm *resolution

NameSpace: ROOT\cimv2

Name                                Methods              Properties
----                                -------              ----------
CIM_CacheMemory                     {SetPowerState, R... {Access, AdditionalErr...
CIM_CurrentSensor                   {SetPowerState, R... {Accuracy, Availabilit...
CIM_FlatPanel                       {SetPowerState, R... {Availability, Caption...
CIM_Memory                          {SetPowerState, R... {Access, AdditionalErr...
CIM_MonitorResolution               {}                   {Caption, Description,...
CIM_NonVolatileStorage              {SetPowerState, R... {Access, AdditionalErr...
CIM_NumericSensor                   {SetPowerState, R... {Accuracy, Availabilit...
CIM_PCVideoController               {SetPowerState, R... {AcceleratorCapabiliti...
CIM_PointingDevice                  {SetPowerState, R... {Availability, Caption...
CIM_Printer                         {SetPowerState, R... {Availability, Availab...
CIM_Tachometer                      {SetPowerState, R... {Accuracy, Availabilit...
CIM_TemperatureSensor               {SetPowerState, R... {Accuracy, Availabilit...
CIM_VideoController                 {SetPowerState, R... {AcceleratorCapabiliti...
CIM_VideoControllerResolution       {}                   {Caption, Description,...
CIM_VolatileStorage                 {SetPowerState, R... {Access, AdditionalErr...
CIM_VoltageSensor                   {SetPowerState, R... {Accuracy, Availabilit...
Win32_CacheMemory                   {SetPowerState, R... {Access, AdditionalErr...
Win32_CurrentProbe                  {SetPowerState, R... {Accuracy, Availabilit...
Win32_DisplayControllerConfigura... {}                   {BitsPerPixel, Caption...
Win32_MemoryArray                   {SetPowerState, R... {Access, AdditionalErr...
Win32_MemoryDevice                  {SetPowerState, R... {Access, AdditionalErr...
Win32_NetworkAdapterConfiguration   {EnableDHCP, Rene... {ArpAlwaysSourceRoute,...
Win32_PointingDevice                {SetPowerState, R... {Availability, Caption...
Win32_Printer                       {SetPowerState, R... {Attributes, Availabil...
Win32_PrinterConfiguration          {}                   {BitsPerPel, Caption, ...
Win32_SMBIOSMemory                  {SetPowerState, R... {Access, AdditionalErr...
Win32_TemperatureProbe              {SetPowerState, R... {Accuracy, Availabilit...
Win32_VideoConfiguration            {}                   {ActualColorResolution...
Win32_VideoController               {SetPowerState, R... {AcceleratorCapabiliti...
Win32_VoltageProbe                  {SetPowerState, R... {Accuracy, Availabilit...

接著，就可以使用類(lèi)名查看它的有效數(shù)據(jù)啦：

復(fù)制代碼代碼如下:

PS> Get-WmiObject -Class CIM_CacheMemory | Select-Object -Property *

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Powershell中使用WMI工具例子