2. -replace操作符有三种实现方式,其它文本操作符也类似地有三种实现方式,像-replace,-ireplace,-creplace,i前缀表示字符串大小写不敏感(insensitive),c前缀表示字符串大小写敏感(case sensitive)。 #下面的例子没有完成替换,因为当前大小写敏感: “Hello Carl” -creplace “carl”, “eddie” Hello Carl 1. 2...
还可以在条件语句(例如if语句)的上下文中使用此方法。 PowerShell if($textFiles=Get-ChildItem*.txt) {$textFiles.Count } 在此示例中,如果没有文件匹配,Get-ChildItem命令不会返回任何内容,并且不会向$textFiles进行任何赋值,这在布尔上下文中被视为$false。 如果将一个或多个FileInfo对象赋值给$textFiles,则...
此变量的类类型为 System.Text.RegularExpressions.Match。 以下示例将每个三位数字的序列替换为字符等效项。 脚本块针对需要替换的每个三位数字集运行。 PowerShell 复制 "072101108108111" -replace "\d{3}", {return [char][int]$_.Value} 输出 复制 Hello 包含运算符 包含运算符(-conta...
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When you run the function, the value you supply for a parameter is assigned to a variable that contains the parameter name. The value of that variable can be used in the function. The following example is a function calledGet-SmallFiles. This function has a$Sizeparameter. The function displa...
}elseif($Operator-eq"ge") {if($Value-ge$DefaultValue) {$Result=@{"$($Key)"="[合格项]|$($Value)|$($DefaultValue)|$($Msg)-【符合】等级保护标准."}Write-Host"$($Key)"=" [合格项]|$($Value)|$($DefaultValue)|$($Msg)-【符合】等级保护标准."-ForegroundColorWhitereturn$Result}else...
Binary module.A .NET framework assembly (DLL file) that contains compiled code. Developers typically use a binary module to create cmdlets with powerful features not easily done with a PowerShell script. Manifest module.A manifest module is a module (PSM1) file with an associated manifest (PSD...
just because you were able to find the profile doesn’t mean it actually exists. $profile is simply a built-in variable that contains the full path to where the profile will be if there is one; the file doesn’t actually have to exist, and, by default. it doesn’t. If you want a...
Dir | Where-Object { $_.Name -contains "-x86" } | ForEach-Object { Rename-Item $_.Name $_.Name.replace("-x86", "") } 1. 2. 更改文件扩展名 如果你想更改文件的扩展名,首先需要意识到后果:文件随后会识别为其它文件类型,而且可能被错误的应用程序打开,甚至不能被任何应用程序打开。下面的命...
This is not a text about how to create a high performance parser for a language with a structured EBNF grammar. There are better tools available for that, for exampleANTLR. .Net methods on thestringclass Any treatment of string parsing in PowerShell would be incomplete if it didn’t mention...