如果<condition>表达式为 true,则执行<if-true>表达式 如果<condition>表达式为 false,则执行<if-false>表达式 例如: PowerShell复制 $message= (Test-Path$path) ?"Path exists":"Path not found" 在此示例中,当 返回 时,$message的值为Path exists。Test-Path$
// If script block exists, see if this line matches any // of the match patterns. else { int patternIndex = 0; while (patternIndex < patterns.Length) { if ((simpleMatch && wildcardPattern[patternIndex].IsMatch(line)) || (regexPattern != null && regexPattern[patternIndex].IsM...
You can also use the Exists() method from the .NET System.IO.Directory class, which requires a full path: PS E:\temp> [System.IO.Directory]::Exists('E:\temp\') True PS E:\temp> [System.IO.Directory]::Exists('E:\temp') True If you want to check if the directory the script/p...
$sqlText1 = "IF NOT EXISTS (SELECT * FROM sys.tables WHERE object_id = object_id('Step1Table')) CREATE TABLE [dbo].[Step1Table]([TestId] [int] NOT NULL);" $sqlText2 = "IF NOT EXISTS (SELECT * FROM sys.tables WHERE object_id = object_id('Step2Table')) CREATE TABLE [dbo]...
$AddModulesArray|ForEach-Object{If($_-notmatch $item){Write-Host Write-Host Installing $_ Install-Module-Name $_ Read-Host-Prompt"Press Enter to continue"}Else{If($_-match $item){Write-Host Write-Host $_ Already Exists Read-Host-Prompt"Press Enter to continue"}}} 此外...
通过foreach循环遍历注册表项并使用if条件语句判断是否存在指定的值,并在存在时打印消息,可以使用以下示例代码: $registryPath = "注册表项路径" $valueName = "指定值名称" $exists = $false # 遍历注册表项 Get-ChildItem -Path $registryPath | ForEach-Object { ...
powerline 字体letg:airline#extensions#tabline#enabled=1""显示窗口tab和buffer"let g:airline_theme='moloai' "murmur配色不错if!exists('g:airline_symbols')letg:airline_symbols={}endifletg:airline_left_sep='▶'letg:airline_left_alt_sep='❯'letg:airline_right_sep='◀'letg:airline_right_alt...
所在位置行:1字符:13+MyScript.ps1<<<+CategoryInfo:ObjectNotFound:(MyScript.ps1:String)[],CommandNotFoundException+FullyQualifiedErrorId:CommandNotFoundExceptionSuggestion[3,General]:未找到命令MyScript.ps1,但它确实存在于当前位置。WindowsPowerShell默认情况下不从当前位置加载命令。如果信任此命令,请改为键入...
\Program Files\PowerShell\7\pwsh.exe Target : LinkType : Length : 293312 DirectoryName : C:\Program Files\PowerShell\7 Directory : C:\Program Files\PowerShell\7 IsReadOnly : False FullName : C:\Program Files\PowerShell\7\pwsh.exe Extension : .exe Name : pwsh.exe Exists : True ...
Set-Service -Name sshd -StartupType'Automatic'# Confirm the Firewall ruleisconfigured. It should be created automatically by setup. Run the following to verifyif(!(Get-NetFirewallRule -Name"OpenSSH-Server-In-TCP"-ErrorAction SilentlyContinue | Select-Object Name, Enabled)) {Write-Output"Fire...