如果语句中有多路分支,使用IF-ELSEIF-ELSE不友好,可以使用Switch,看起来比较清爽一点。 下面的例子将If-ElseIF-Else转换成Switch语句 # 使用 IF-ElseIF-ElseIf($value-eq1) {"Beijing"}Elseif($value-eq2) {"Shanghai"}Elseif($value-eq3) {"Tianjin"}Else{"Chongqing"}# 使用 Switchswitch($value) {1...
这里的感叹号!代表非的意思,也可以写作-not,如 if(-not($num%2)) 下面是运行结果: Powershell 中的比较运算符 -eq :等于 -ne :不等于 -gt :大于 -ge :大于等于 -lt :小于 -le :小于等于 -contains :包含 -notcontains :不包含 -not :非 -is :是 -and :和 -or :或 -xor :异或 1 $n=0...
-band二進位AND -bor二進位或運算 -bxor二進位獨佔 OR -bnot二進位 NOT 左移-shl -shr右移 PowerShell 表達式 我們可以在條件語句內使用一般 PowerShell。 PowerShell if(Test-Path-Path$Path) Test-Path會在執行時傳回$true或$false。 這也適用於傳回其他值的命令。
if语句 下面是if语句的基本示例: PowerShell $condition=$trueif($condition) {Write-Output"The condition was true"} if语句执行的第一步是计算括号中的表达式。 如果计算结果为$true,则执行大括号中的scriptblock。 如果值为$false,则会跳过该脚本块。
若要进一步优化此示例,可以使用elseif语句在 的值$a等于2时显示消息。 如下一个示例所示: PowerShell if($a-gt2) {Write-Host"The value$ais greater than 2."}elseif($a-eq2) {Write-Host"The value$ais equal to 2."}else{Write-Host("The value$ais less than 2 or"+" was not created or in...
If a parameter is not positional, you leave off the Position attribute and use the parameter name from the command line to provide a value.The documentation recommends that you make frequently used parameters positional whenever possible. The only problem with this guidance is that if you have ...
Check if a process is running check if a process or service is hanging/not responding? Check if a text file is blank in powershell check if computer exist in ou Check if drive exists, If not map Check if Email address exists in Office 365 and if exists, Create a Unique Email address...
; $object | Add-Member NoteProperty Blah9 "Never gonna run around and desert you."; $object | Add-Member NoteProperty Blah2 "I hope you de-obfuscated this before running it. If not, that''s typically a very, very bad idea..."; $env:CTFFlag1 = "Nice!"; $env:CTFFlag2 = $...
The term 'Update-ModuleManifest' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
(But just a little bit, not very much.) If the full path to this file doesn’t exist, trying to open it in Notepad will return an error; you won’t receive any prompts and the file won’t be created for you. The way to create this file in Windows Vista and Windows Server 2008...