如何查询Powershell cmdlet参数值

如何以编程方式获取cmdlet参数的可能值列表？ 例如，对于新项目-类型：

File
Directory
SymbolicLink
Junction
HardLink

您还可以查看在线文档（例如）

或者你可以使用

(Get-Command -Name new-item).parametersets

如上所述

对于“Get-”cmdlet，我通常创建一个对象，然后执行Get成员来检索成员的定义

e、 g

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你看过Get命令了吗<代码>（获取命令-命名新项）。参数集您的解决方案是获取所有命令参数。我问的是获取单个给定参数的所有可能值（特别是：newitem命令的Type参数），您的解决方案是获取所有命令参数。我问的是如何获取单个给定参数的所有可能值（特别是：newitem命令的Type参数）Ok。在这种情况下，您可以编写“New-Item-Type”，然后使用tab遍历选项。此cmdlet的可能选项有：文件、目录、符号链接、连接或硬链接。没有查看代码，我假设cmdlet使用ValidateSet属性-请参阅：&

(Get-Command -Name new-item).parametersets

$item = Get-Item .\test.csv
$item | Get-Member


   TypeName: System.IO.FileInfo

Name                      MemberType     Definition
----                      ----------     ----------
LinkType                  CodeProperty   System.String LinkType{get=GetLinkType;}
Mode                      CodeProperty   System.String Mode{get=Mode;}
Target                    CodeProperty   System.Collections.Generic.IEnumerable`1[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]] Target{get=GetTarget;}
AppendText                Method         System.IO.StreamWriter AppendText()
CopyTo                    Method         System.IO.FileInfo CopyTo(string destFileName), System.IO.FileInfo CopyTo(string destFileName, bool overwrite)
Create                    Method         System.IO.FileStream Create()
CreateObjRef              Method         System.Runtime.Remoting.ObjRef CreateObjRef(type requestedType)
CreateText                Method         System.IO.StreamWriter CreateText()
Decrypt                   Method         void Decrypt()
Delete                    Method         void Delete()
Encrypt                   Method         void Encrypt()
Equals                    Method         bool Equals(System.Object obj)
GetAccessControl          Method         System.Security.AccessControl.FileSecurity GetAccessControl(), System.Security.AccessControl.FileSecurity GetAccessControl(System.Security.AccessControl.AccessControlSections includeSections)
GetHashCode               Method         int GetHashCode()
GetLifetimeService        Method         System.Object GetLifetimeService()
GetObjectData             Method         void GetObjectData(System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context), void ISerializable.GetObjectData(System.Runtime.Serialization.Se...
GetType                   Method         type GetType()
InitializeLifetimeService Method         System.Object InitializeLifetimeService()
MoveTo                    Method         void MoveTo(string destFileName)
Open                      Method         System.IO.FileStream Open(System.IO.FileMode mode), System.IO.FileStream Open(System.IO.FileMode mode, System.IO.FileAccess access), System.IO.FileStream Open(System.IO.FileMode mode, System.I...
OpenRead                  Method         System.IO.FileStream OpenRead()
OpenText                  Method         System.IO.StreamReader OpenText()
OpenWrite                 Method         System.IO.FileStream OpenWrite()
Refresh                   Method         void Refresh()
Replace                   Method         System.IO.FileInfo Replace(string destinationFileName, string destinationBackupFileName), System.IO.FileInfo Replace(string destinationFileName, string destinationBackupFileName, bool ignoreMe...
SetAccessControl          Method         void SetAccessControl(System.Security.AccessControl.FileSecurity fileSecurity)
ToString                  Method         string ToString()
PSChildName               NoteProperty   string PSChildName=test.csv
PSDrive                   NoteProperty   PSDriveInfo PSDrive=C
PSIsContainer             NoteProperty   bool PSIsContainer=False
PSParentPath              NoteProperty   string PSParentPath=Microsoft.PowerShell.Core\FileSystem::C:\test
PSPath                    NoteProperty   string PSPath=Microsoft.PowerShell.Core\FileSystem::C:\test\test.csv
PSProvider                NoteProperty   ProviderInfo PSProvider=Microsoft.PowerShell.Core\FileSystem
Attributes                Property       System.IO.FileAttributes Attributes {get;set;}
CreationTime              Property       datetime CreationTime {get;set;}
CreationTimeUtc           Property       datetime CreationTimeUtc {get;set;}
Directory                 Property       System.IO.DirectoryInfo Directory {get;}
DirectoryName             Property       string DirectoryName {get;}
Exists                    Property       bool Exists {get;}
Extension                 Property       string Extension {get;}
FullName                  Property       string FullName {get;}
IsReadOnly                Property       bool IsReadOnly {get;set;}
LastAccessTime            Property       datetime LastAccessTime {get;set;}
LastAccessTimeUtc         Property       datetime LastAccessTimeUtc {get;set;}
LastWriteTime             Property       datetime LastWriteTime {get;set;}
LastWriteTimeUtc          Property       datetime LastWriteTimeUtc {get;set;}
Length                    Property       long Length {get;}
Name                      Property       string Name {get;}
BaseName                  ScriptProperty System.Object BaseName {get=if ($this.Extension.Length -gt 0){$this.Name.Remove($this.Name.Length - $this.Extension.Length)}else{$this.Name};}
VersionInfo               ScriptProperty System.Object VersionInfo {get=[System.Diagnostics.FileVersionInfo]::GetVersionInfo($this.FullName);}