# About 文档索引

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使用:help aboutxxx就行了.

#TYPE HelpInfoShort
Name Category Synopsis
about_ActivityCommonParameters HelpFile Describes the parameters that Windows PowerShell
about_Aliases HelpFile Describes how to use alternate names for cmdlets and commands in Windows
about_Arithmetic_Operators HelpFile Describes the operators that perform arithmetic in Windows PowerShell.
about_Arrays HelpFile Describes arrays, which are data structures designed to store
about_Assignment_Operators HelpFile Describes how to use operators to assign values to variables.
about_Automatic_Variables HelpFile Describes variables that store state information for Windows PowerShell.
about_Break HelpFile Describes a statement you can use to immediately exit Foreach, For, While,
about_Checkpoint-Workflow HelpFile Describes the Checkpoint-Workflow activity, which
about_CimSession HelpFile Describes a CimSession object and the difference between CIM sessions and
about_Classes HelpFile Describes how you can use classes to develop in Windows PowerShell
about_Command_Precedence HelpFile Describes how Windows PowerShell determines which command to run.
about_Command_Syntax HelpFile Describes the syntax diagrams that are used in Windows PowerShell.
about_Comment_Based_Help HelpFile Describes how to write comment-based help topics for functions and scripts.
about_CommonParameters HelpFile Describes the parameters that can be used with any cmdlet.
about_Comparison_Operators HelpFile Describes the operators that compare values in Windows PowerShell.
about_Continue HelpFile Describes how the Continue statement immediately returns the program flow
about_Core_Commands HelpFile Lists the cmdlets that are designed for use with Windows PowerShell
about_Data_Sections HelpFile Explains Data sections, which isolate text strings and other read-only
about_Debuggers HelpFile Describes the Windows PowerShell debugger.
about_DesiredStateConfiguration HelpFile Provides a brief introduction to the Windows
about_Do HelpFile Runs a statement list one or more times, subject to a While or Until
about_Environment_Variables HelpFile Describes how to access Windows environment variables in Windows
about_Escape_Characters HelpFile Introduces the escape character in Windows PowerShell and explains
about_Eventlogs HelpFile Windows PowerShell creates a Windows event log that is
about_Execution_Policies HelpFile Describes the Windows PowerShell execution policies and explains
about_For HelpFile Describes a language command you can use to run statements based on a
about_ForEach-Parallel HelpFile Describes the ForEach -Parallel language construct in
about_Foreach HelpFile Describes a language command you can use to traverse all the items in a
about_Format.ps1xml HelpFile The Format.ps1xml files in Windows PowerShell define the default display
about_Functions HelpFile Describes how to create and use functions in Windows PowerShell.
about_Functions_Advanced HelpFile Introduces advanced functions that act similar to cmdlets.
about_Functions_Advanced_Methods HelpFile Describes how functions that specify the CmdletBinding attribute can use
about_Functions_Advanced_Parameters HelpFile Explains how to add parameters to advanced functions.
about_Functions_CmdletBindingAttribute HelpFile Describes the attribute that makes a function work like a
about_Functions_OutputTypeAttribute HelpFile Describes an attribute that reports the type of object that the function
about_Group_Policy_Settings HelpFile Describes the Group Policy settings for Windows PowerShell
about_Hash_Tables HelpFile Describes how to create, use, and sort hash tables in Windows PowerShell.
about_Hidden HelpFile Describes the Hidden keyword, which hides class members from default Get-Member results.
about_History HelpFile Describes how to get and run commands in the command history.
about_If HelpFile Describes a language command you can use to run statement lists based
about_InlineScript HelpFile Describes the InlineScript activity, which runs Windows
about_Jobs HelpFile Provides information about how Windows PowerShell background jobs run a
about_Job_Details HelpFile Provides details about background jobs on local and remote computers.
about_Join HelpFile Describes how the join operator (-join) combines multiple strings into a
about_Language_Keywords HelpFile Describes the keywords in the Windows PowerShell scripting language.
about_Language_Modes HelpFile Explains language modes and their effect on Windows
about_Line_Editing HelpFile Describes how to edit commands at the Windows PowerShell command prompt.
about_Locations HelpFile Describes how to access items from the working location in Windows
about_Logical_Operators HelpFile Describes the operators that connect statements in Windows PowerShell.
about_Methods HelpFile Describes how to use methods to perform actions on objects in Windows
about_Modules HelpFile Explains how to install, import, and use Windows PowerShell modules.
about_Objects HelpFile Provides essential information about objects in Windows PowerShell.
about_Object_Creation HelpFile Explains how to create objects in Windows PowerShell.
about_Operators HelpFile Describes the operators that are supported by Windows PowerShell.
about_Operator_Precedence HelpFile Lists the Windows PowerShell operators in precedence order.
about_PackageManagement HelpFile PackageManagement is an aggregator for software package managers.
about_Parallel HelpFile Describes the Parallel keyword, which runs the
about_Parameters HelpFile Describes how to work with command parameters in Windows PowerShell.
about_Parameters_Default_Values HelpFile Describes how to set custom default values for the parameters of cmdlets and
about_Parsing HelpFile Describes how Windows PowerShell parses commands.
about_Parsing_LocTest HelpFile Describes how Windows PowerShell parses commands.
about_Path_Syntax HelpFile Describes the full and relative path name formats in Windows PowerShell.
about_Pipelines HelpFile Combining commands into pipelines in the Windows PowerShell
about_PowerShell.exe HelpFile Explains how to use the PowerShell.exe command-line tool. Displays
about_PowerShell_Ise.exe HelpFile Explains how to use the PowerShell_Ise.exe command-line tool.
about_Preference_Variables HelpFile Variables that customize the behavior of Windows PowerShell
about_Profiles HelpFile Describes how to create and use a Windows PowerShell profile.
about_Prompts HelpFile Describes the Prompt function and demonstrates how to create a custom
about_Properties HelpFile Describes how to use object properties in Windows PowerShell.
about_Providers HelpFile Describes how Windows PowerShell providers provide access to data and
about_PSConsoleHostReadLine HelpFile Explains how to create a customize how Windows PowerShell reads input
about_PSReadline HelpFile
about_PSSessions HelpFile Describes Windows PowerShell sessions (PSSessions) and explains how to
about_PSSession_Details HelpFile Provides detailed information about Windows PowerShell sessions and the
about_PSSnapins HelpFile Describes Windows PowerShell snap-ins and shows how to use and manage them.
about_Quoting_Rules HelpFile Describes rules for using single and double quotation marks
about_Redirection HelpFile Explains how to redirect output from Windows PowerShell to text files.
about_Ref HelpFile Describes how to create and use a reference variable type.
about_Regular_Expressions HelpFile Describes regular expressions in Windows PowerShell.
about_Remote HelpFile Describes how to run remote commands in Windows PowerShell.
about_Remote_Disconnected_Sessions HelpFile Explains how to disconnect from and reconnect to a PSSession
about_Remote_FAQ HelpFile Contains questions and answers about running remote commands
about_Remote_Jobs HelpFile Describes how to run background jobs on remote computers.
about_Remote_Output HelpFile Describes how to interpret and format the output of remote commands.
about_Remote_Requirements HelpFile Describes the system requirements and configuration requirements for
about_Remote_Troubleshooting HelpFile Describes how to troubleshoot remote operations in Windows PowerShell.
about_Remote_Variables HelpFile Explains how to use local and remote variables in remote
about_Requires HelpFile Prevents a script from running without the required elements.
about_Reserved_Words HelpFile Lists the reserved words that cannot be used as identifiers because they
about_Return HelpFile Exits the current scope, which can be a function, script, or script block.
about_Run_With_PowerShell HelpFile Explains how to use the "Run with PowerShell" feature to run
about_Scheduled_Jobs HelpFile Describes scheduled jobs and explains how to use and manage
about_Scheduled_Jobs_Advanced HelpFile Explains advanced scheduled job topics, including the file structure
about_Scheduled_Jobs_Basics HelpFile Explains how to create and manage scheduled jobs.
about_Scheduled_Jobs_Troubleshooting HelpFile Explains how to resolve problems with scheduled jobs
about_Scopes HelpFile Explains the concept of scope in Windows PowerShell and shows how to set
about_Scripts HelpFile Describes how to run and write scripts in Windows PowerShell.
about_Script_Blocks HelpFile Defines what a script block is and explains how to use script blocks in
about_Script_Internationalization HelpFile Describes the script internationalization features of Windows PowerShell 2.0
about_Sequence HelpFile Describes the Sequence keyword, which runs selected
about_Session_Configurations HelpFile Describes session configurations, which determine the users who can
about_Session_Configuration_Files HelpFile Describes session configuration files, which can be used in a
about_Signing HelpFile Explains how to sign scripts so that they comply with the Windows
about_Special_Characters HelpFile Describes the special characters that you can use to control how
about_Splatting HelpFile Describes how to use splatting to pass parameters to commands
about_Split HelpFile Explains how to use the Split operator to split one or more strings into
about_Suspend-Workflow HelpFile Describes the Suspend-Workflow activity, which suspends
about_Switch HelpFile Explains how to use a switch to handle multiple If statements.
about_Throw HelpFile Describes the Throw keyword, which generates a terminating error.
about_Transactions HelpFile Describes how to manage transacted operations in Windows PowerShell.
about_Trap HelpFile Describes a keyword that handles a terminating error.
about_Try_Catch_Finally HelpFile Describes how to use the Try, Catch, and Finally blocks to handle
about_Types.ps1xml HelpFile Explains how to use Types.ps1xml files to extend the types of objects
about_Type_Operators HelpFile Describes the operators that work with Microsoft .NET Framework types.
about_Updatable_Help HelpFile Describes the updatable help system in Windows PowerShell.
about_Variables HelpFile Describes how variables store values that can be used in Windows
about_While HelpFile Describes a language statement that you can use to run a command block
about_Wildcards HelpFile Describes how to use wildcard characters in Windows PowerShell.
about_Windows_PowerShell_5.0 HelpFile Describes new features that are included in
about_Windows_PowerShell_ISE HelpFile Describes the features and system requirements of Windows PowerShell
about_Windows_RT HelpFile Explains limitations of Windows PowerShell 4.0 on Windows RT 8.1.
about_WMI HelpFile Windows Management Instrumentation (WMI) uses the
about_WMI_Cmdlets HelpFile Provides background information about Windows Management Instrumentation
about_WorkflowCommonParameters HelpFile This topic describes the parameters that are valid on all Windows
about_Workflows HelpFile Provides a brief introduction to the Windows
about_WQL HelpFile Describes WMI Query Language (WQL), which can be
about_WS-Management_Cmdlets HelpFile Provides an overview of Web Services for Management (WS-Management) as
about_BeforeEach_AfterEach HelpFile performed at the beginning and end of every It block. This can eliminate duplication of code
about_Mocking HelpFile Pester provides a set of Mocking functions making it easy to fake dependencies
about_Pester HelpFile Pester is a BDD based test runner for PowerShell.
about_should HelpFile Provides assertion convenience methods for comparing objects and throwing
about_TestDrive HelpFile A PSDrive for file activity limited to the scope of a singe Describe or
about_Scheduled_Jobs HelpFile Describes scheduled jobs and explains how to use and manage
about_Scheduled_Jobs_Advanced HelpFile Explains advanced scheduled job topics, including the file structure
about_Scheduled_Jobs_Basics HelpFile Explains how to create and manage scheduled jobs.
about_Scheduled_Jobs_Troubleshooting HelpFile Explains how to resolve problems with scheduled jobs
about_ActivityCommonParameters HelpFile Describes the parameters that Windows PowerShell
about_Checkpoint-Workflow HelpFile Describes the Checkpoint-Workflow activity, which
about_ForEach-Parallel HelpFile Describes the ForEach -Parallel language construct in
about_InlineScript HelpFile Describes the InlineScript activity, which runs Windows
about_Parallel HelpFile Describes the Parallel keyword, which runs the
about_Sequence HelpFile Describes the Sequence keyword, which runs selected
about_Suspend-Workflow HelpFile Describes the Suspend-Workflow activity, which suspends
about_WorkflowCommonParameters HelpFile This topic describes the parameters that are valid on all Windows
about_Workflows HelpFile Provides a brief introduction to the Windows
Last Updated: Saturday, May 23, 2020 5:58 PM