2. for循环 for(<initializer>;<exit condition>;<step action>) { <action> } 初始化和步进值为可选 3. 遍历集合的循环语句 for each Loop foreach($item in $collection) { <action> } 4. 强制退出循环使用break语句;反复遍历一个集合并操作其中的大多数对象,可以使用continue语句。break所在的程序段的条件满足的情况下将会退出整个循环,而continue语句块的条...
这种形式的循环出即for…loop结构,其一般格式如下: for(<initializer>;<exit condition>;<step action>) { <action> } 这种循环通过初始化计数器,每次循环的过程中递增或者递减该计数器,直到计数器达到退出要求。下例使用for循环重写前一节的while循环: PS C:\> for($i=0;$i -lt 3;$i++){ >> Write-...
Using a for loop gives more control over limits and conditions on when the code should exit. This is compared with theforeach loopor theForEach-Objectcmdlet, where iteration stops after the last item in the collection was processed.
$numList=1,2,3,4,5,6,7,8foreach($numberin$numList){if($number-eq8){#Terminate loop if number variable is equal to 8break}Write-Output$number} 输出: 1234567 如果我们有嵌套循环,我们只会从调用break命令的循环中中断。 示例代码: While($true) {While($true) {#The break command will onl...
{ sleep1;Write-Output"hello2day$_"}7: }# 8:9:$count=1010:$psName="PowerShell"11:*$winRMName="WinRM"12:$myVar=102# 13:14:for($i=0;$i-lt$count;$i++)15: {16: sleep117:Write-Output"Loop iteration is:$i"18:Write-Output"MyVar is$myVar"# 19:20: hello2day# 21:[localhost]...
break将执行移出标记的循环。 在嵌入式循环中,其结果与break关键字 (keyword) 单独使用时的结果不同。 此示例包含语句while的 语句for: PowerShell :myLabelwhile(<condition1>) {for($itemin$items) {if(<condition2>) {breakmyLabel }$item=$x# A statement inside the For-loop} }$a=$c# A statement...
PowerShell evaluates the condition each time the For loop runs. If the statement is $true, the commands in the command block run, and the statement is evaluated again. If the condition is still $true, the commands in the Statement list run again. The loop is repeated until the condition ...
For loop writing to same line in export-csv operation instead of writing new line Force connection to use SMBv1? force overwrite with copy-item? Force powershell script to continue once command freezes Force powershell.exe console to exit from a script Force PS GUI to Foreground Force Take...
Additionally, instead of using an explicit $loaded variable, I could have used the Windows PowerShell break statement to exit the delay loop. Windows PowerShell has a rich set of control structures that allow you to program in many different styles, including whatever programming style you are ...
TheBreakstatement is used to exit a looping statement such as aForeach,For,While, orDoloop. When present, theBreakstatement causes Windows PowerShell to exit the loop. TheBreakstatement can also be used in aSwitchstatement. NoteFor more information about looping in Windows PowerShell script, ...