WHERE <property> <operator> <value> OR <property> <operator> <value> ... 例如,以下命令将获取Win32_ProcessWMI 类的所有实例,但仅当进程名称为winword.exe或excel.exe时才返回它们。 PowerShell $q="SELECT * FROM Win32_Process WHERE Name='wi
powershell 结合使用AND和OR语句计算条件最后一步是获取后缀令牌并对其进行评估。“所有”我们需要做的就...
The -split operator splits a string into substrings. The -join operator concatenates multiple strings into a single string. For more information, see about_Split and about_Join. Type Operators Use the type operators (-is, -isnot, -as) to find or change the .NET type of an object. For...
-or を使用すると、2 つの式を指定し、その 1 つが $true である場合に $true を返すことができます。 PowerShell コピー if ( $age -le 13 -or $age -ge 55 ) -and 演算子と同様に、評価は左から右に実行されます。 最初の部分が $true である場合は、ステートメント全体が $tr...
PowerShell 7.3 added thecleanblock. Thecleanblock is a convenient way for users to clean up resources created and used in thebegin,process, andendblocks. It's semantically similar to afinallyblock that covers all other named blocks of a script function or a script cmdlet. Resource cleanup is...
snapshot from the CIM server. When you pass a CIM instance object as an input,Get-CimInstancereturns the object from server using a get CIM operation, instead of an enumerate or query operation. Using a get CIM operation is more efficient than retrieving all instances and then filtering them...
Thecontinueandbreakflow control keywords can be used in aDo-Whileloop or in aDo-Untilloop. Syntax The following shows the syntax of theDo-Whilestatement: PowerShell do{<statement list>}while(<condition>) The following shows the syntax of theDo-Untilstatement: ...
Since PowerShell can run script in both Full and Constrained language modes, we need to protect the boundary between them. We don’t want to leak variables or functions between sessions running in different language modes. The PowerShelldot-sourceoperator brings script files into the current sessi...
,|and{}characters. The question mark is one of several PowerShell regular expression quantifiers, which dictate how many times a preceding character or group of characters should be matched. The question mark means a match of zero or one time. The pipe character acts as an "or" operat...
is used to indicate the “accelerator key” for this option. By placing the ampersand before the letterYwe’re giving the user two ways to select this option: typeYesand press ENTER; or typeYand press ENTER. What if we wanted to give the user the option of typing the letterSand then ...