输出 复制 Test collection: 5 6 7 8 9 Members greater than 7 8 9 Members greater than or equal to 7 7 8 9 Members smaller than 7 5 6 Members smaller than or equal to 7 5 6 7 这些运算符适用于实现 system.IComparable 的任何类。示例:...
CommandType Instance property (read-only) Implementation defined Should compare equal with "Alias". Definition Instance property (read-only) string The command or alias to which the alias was assigned via the New-Alias or Set-Alias cmdlets. Description Instance property (read-write) string The desc...
Compare-Object 检查比较整个对象的可用方法。 如果找不到合适的方法,它将调用输入对象的 ToString() 方法,并比较字符串结果。 可以提供一个或多个要用于比较的属性。 提供属性时,cmdlet 仅比较这些属性的值。比较结果指示属性值仅出现在 引用 对象(<=)中,或仅出现在差异对象(=>)中。 如果使用 IncludeEqual ...
提供者 允許存取命令行無法輕易存取的數據和元件。 資料會以類似檔案系統的磁碟區的一致格式呈現。提供者公開的資料會顯示在 磁碟驅動器上,並透過 路徑 存取,就像操作磁碟驅動器一樣。 每個提供者的內建 Cmdlet 會管理提供者磁碟驅動器上的數據。PowerShell 包含下列一組內建提供者,可存取不同類型的數據存放區:...
In this example, we compare two different string that have the same length. PowerShell Compare-Object-ReferenceObject'abc'-DifferenceObject'xyz'-PropertyLength-IncludeEqualLength SideIndicator --- ---3== Example 5 - Comparing complex objects using properties This example shows the...
Compare two mailbox users directly in compare-object scriptblock compare two strings in if-then-else statement Compare two text files in Powershell and if a name is found in both files output content from file 2 to a 3rd text file Compare-Object : Cannot bind argument to parameter 'Referenc...
Notice the second example doesn’t use a comparison operator such as -eq. That’s because the Test-Path cmdlet happens to return True or False to begin with. There’s no need to compare that to True or False in order for the expression to work. ...
## Compare-Property.ps1 ## ## From Windows PowerShell Cookbook (O’Reilly) ## by Lee Holmes (http://www.leeholmes.com/guide) ## ## Compare the property you provide against the input supplied to the script. ## This provides the functionality of simple Where-Object comparisons without ...
There’s no need to compare that to True or False in order for the expression to work.The parenthetical expression used with these scripting constructs merely needs to simplify down to True or False. If you’re using a command such as Test-Path, which always returns True or False, that’...
If you work with database types, you may get back a[dbnull]::Valuewhich is equivalent to$nullwithin the database, but in PowerShell, this was not equal to$nullso you can’t compare it directly. This change fromJoel Sallowallows you to compare both[dbnull]::Valueand[nullstring]::Valu...