“类型加速器”类似 .NET 类型别名。它们的目的是节约打字。例如,[ADSI]
“类型”实际上并不存在。它只不过是 System.DirectoryServices.DirectoryEntry
的别名。您可以将 [ADSI]
替换为 [System.DirectoryServices.DirectoryEntry]
:
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| PS> [ADSI].FullName System.DirectoryServices.DirectoryEntry
PS> [System.DirectoryServices.DirectoryEntry].FullName System.DirectoryServices.DirectoryEntry
|
由于类型加速器是硬编码进 PowerShell 中的,所以使用它们是安全的。以下这行代码将显示所有预定义的类型加速器,如果您想使用 .NET 类型,您可以选用列表中的内容,因为它们在 PowerShell 中都很重要:
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| PS> [PSObject].Assembly.GetType('System.Management.Automation.TypeAccelerators')::Get
Key Value --- ----- Alias System.Management.Automation.AliasAttribute AllowEmptyCollection System.Management.Automation.AllowEmptyCollecti... AllowEmptyString System.Management.Automation.AllowEmptyStringAt... AllowNull System.Management.Automation.AllowNullAttribute ArgumentCompleter System.Management.Automation.ArgumentCompleterA... array System.Array bool System.Boolean byte System.Byte char System.Char CmdletBinding System.Management.Automation.CmdletBindingAttri... datetime System.DateTime decimal System.Decimal double System.Double DscResource System.Management.Automation.DscResourceAttribute float System.Single single System.Single guid System.Guid hashtable System.Collections.Hashtable int System.Int32 int32 System.Int32 int16 System.Int16 long System.Int64 int64 System.Int64 ciminstance Microsoft.Management.Infrastructure.CimInstance cimclass Microsoft.Management.Infrastructure.CimClass cimtype Microsoft.Management.Infrastructure.CimType cimconverter Microsoft.Management.Infrastructure.CimConverter IPEndpoint System.Net.IPEndPoint NullString System.Management.Automation.Language.NullString OutputType System.Management.Automation.OutputTypeAttribute ObjectSecurity System.Security.AccessControl.ObjectSecurity Parameter System.Management.Automation.ParameterAttribute PhysicalAddress System.Net.NetworkInformation.PhysicalAddress pscredential System.Management.Automation.PSCredential PSDefaultValue System.Management.Automation.PSDefaultValueAttr... pslistmodifier System.Management.Automation.PSListModifier psobject System.Management.Automation.PSObject pscustomobject System.Management.Automation.PSObject psprimitivedictionary System.Management.Automation.PSPrimitiveDictionary ref System.Management.Automation.PSReference PSTypeNameAttribute System.Management.Automation.PSTypeNameAttribute regex System.Text.RegularExpressions.Regex DscProperty System.Management.Automation.DscPropertyAttribute sbyte System.SByte string System.String SupportsWildcards System.Management.Automation.SupportsWildcardsA... switch System.Management.Automation.SwitchParameter cultureinfo System.Globalization.CultureInfo bigint System.Numerics.BigInteger securestring System.Security.SecureString timespan System.TimeSpan uint16 System.UInt16 uint32 System.UInt32 uint64 System.UInt64 uri System.Uri ValidateCount System.Management.Automation.ValidateCountAttri... ValidateDrive System.Management.Automation.ValidateDriveAttri... ValidateLength System.Management.Automation.ValidateLengthAttr... ValidateNotNull System.Management.Automation.ValidateNotNullAtt... ValidateNotNullOrEmpty System.Management.Automation.ValidateNotNullOrE... ValidatePattern System.Management.Automation.ValidatePatternAtt... ValidateRange System.Management.Automation.ValidateRangeAttri... ValidateScript System.Management.Automation.ValidateScriptAttr... ValidateSet System.Management.Automation.ValidateSetAttribute ValidateTrustedData System.Management.Automation.ValidateTrustedDat... ValidateUserDrive System.Management.Automation.ValidateUserDriveA... version System.Version void System.Void ipaddress System.Net.IPAddress DscLocalConfigurationManager System.Management.Automation.DscLocalConfigurat... WildcardPattern System.Management.Automation.WildcardPattern X509Certificate System.Security.Cryptography.X509Certificates.X... X500DistinguishedName System.Security.Cryptography.X509Certificates.X... xml System.Xml.XmlDocument CimSession Microsoft.Management.Infrastructure.CimSession adsi System.DirectoryServices.DirectoryEntry adsisearcher System.DirectoryServices.DirectorySearcher wmiclass System.Management.ManagementClass wmi System.Management.ManagementObject wmisearcher System.Management.ManagementObjectSearcher mailaddress System.Net.Mail.MailAddress scriptblock System.Management.Automation.ScriptBlock psvariable System.Management.Automation.PSVariable type System.Type psmoduleinfo System.Management.Automation.PSModuleInfo powershell System.Management.Automation.PowerShell runspacefactory System.Management.Automation.Runspaces.Runspace... runspace System.Management.Automation.Runspaces.Runspace initialsessionstate System.Management.Automation.Runspaces.InitialS... psscriptmethod System.Management.Automation.PSScriptMethod psscriptproperty System.Management.Automation.PSScriptProperty psnoteproperty System.Management.Automation.PSNoteProperty psaliasproperty System.Management.Automation.PSAliasProperty psvariableproperty System.Management.Automation.PSVariableProperty
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