New-Guid

Creates a GUID.

语法

Default (默认值)

New-Guid
    [<CommonParameters>]

Empty

New-Guid
    [-Empty]
    [<CommonParameters>]

InputObject

New-Guid
    [-InputObject <String>]
    [<CommonParameters>]

说明

The New-Guid cmdlet creates a random globally unique identifier (GUID). If you need a unique ID in a script, you can create a GUID, as needed.

示例

Example 1: Create a new GUID

New-Guid

This command creates a random GUID. Alternatively, you could store the output of this cmdlet in a variable to use elsewhere in a script.

Example 2: Create an empty GUID

New-Guid -Empty
Guid
----
00000000-0000-0000-0000-000000000000

Example 3: Create a GUID from a string

This example converts a string that contains a GUID to a GUID object.

New-Guid -InputObject "d61bbeca-0186-48fa-90e1-ff7aa5d33e2d"
Guid
----
d61bbeca-0186-48fa-90e1-ff7aa5d33e2d

Example 4: Convert strings from the pipeline to GUIDs

This examples converts strings from the pipeline to GUID objects.

$guidStrings = (
'11c43ee8-b9d3-4e51-b73f-bd9dda66e29c',
'0f8fad5bd9cb469fa16570867728950e',
'{0x01234567, 0x89ab, 0xcdef,{0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef}}'
)
$guidStrings | New-Guid
Guid
----
11c43ee8-b9d3-4e51-b73f-bd9dda66e29c
0f8fad5b-d9cb-469f-a165-70867728950e
01234567-89ab-cdef-0123-456789abcdef

参数

-Empty

Indicates that this cmdlet creates an empty GUID. An empty GUID has all zeros in its string.

参数属性

类型:SwitchParameter
默认值:None
支持通配符:False
不显示:False

参数集

Empty
Position:Named
必需:False
来自管道的值:False
来自管道的值(按属性名称):False
来自剩余参数的值:False

-InputObject

This parameter accepts a string representing a GUID and converts it to a GUID object.

参数属性

类型:String
默认值:None
支持通配符:False
不显示:False

参数集

InputObject
Position:Named
必需:False
来自管道的值:True
来自管道的值(按属性名称):False
来自剩余参数的值:False

CommonParameters

This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutBuffer, -OutVariable, -PipelineVariable, -ProgressAction, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.

输出

Guid

This cmdlet returns a GUID.

备注

The cmdlet passes string input to the constructor of the System.Guid class. The constructor support strings in several formats. For more information, see System.Guid(String).

When used without string input or the Empty parameter, the cmdlet creates a Version 4 Universally Unique Identifier (UUID). For more information, see System.Guid.NewGuid.