括号内的 语句部分foreach表示要循环访问的变量和集合。 PowerShell 在循环运行时自动foreach创建变量$<item>。 每次迭代开始时,foreach将项变量设置为集合中的下一个值。 块{<statement list>}包含要针对每个迭代执行的命令。 示例 例如,foreach以下示例中的 循环显示 数组中的$letterArray值。
foreach($itemin$array) {Write-Output$item}Write-Output$array[3] 您也可以以相同方式使用索引來更新值。 PowerShell $array[2] =13 我只是初步了解了陣列,不過這應該能幫助我在進一步學習哈希表時更好地理解它們。 什麼是哈希表? 從一般意義上說,我會先從基本技術描述哈希表開始,再轉換到 PowerShell 使用...
Like we said, thatseemslike a simple enough question. In VBScript, however, answering that question is anythingbutsimple; as it is, you have to set up a For Each loop, loop through and check each individual item in the array, keep track of whether or not you encounter the wordblack, ...
$array = 1..5 | ForEach-Object { "ATX-SQL-$PSItem" } 通常當我們想到使用管線時,我們會考慮一般的 PowerShell 單行程式。 我們可以利用管線搭配 foreach() 語句和其他迴圈。 因此,我們可以將專案卸除至管線,而不是在迴圈中將專案新增至陣列。Power...
The ForEach-Object cmdlet performs an operation on each item in a collection of input objects. The input objects can be piped to the cmdlet or specified using the InputObject parameter. Starting in Windows PowerShell 3.0, there are two different ways to
To add the number five to each of the elements in the array, I need to walk through the array by using theForeachcommand. To use theforeachcommand, I need to do three things: I call theForeachcommand. I use a pair of parentheses, I use a variable for my place holder (enumerator)...
gi 获取指定的文件或者目录 Get-Item gp 获取文件或目录的属性 Get-ItemProperty ii 使用对应的默认windows程序运行文件或者目录 Invoke-Item — 连接两个路径为一个路径 Join-Path mi, mv, move 移动文件或者目录 Move-Item ni 创建新文件或者目录 New-Item ri, rm, rmdir,del, erase, rd 删除空目录或者文件...
$array 变量包含一个 Int32 对象和一个 字符串 对象,如数组通过管道传递给 Get-Member时所示。 使用 $array 参数传递 时,Get-Member 返回Object[] 类型的成员。 示例7:确定可以设置的对象属性 此示例演示如何确定可以更改对象的哪些属性。 PowerShell 复制 $File = Get-Item C:\test\textFile.txt $File.ps...
The For loop is more flexible than the Foreach loop because it allows you to increment values in an array or collection by using patterns. In the following example, the $i variable is incremented by 2 in the Repeat portion of the For statement. PowerShell Kopija for ($i = 0; $i -...
# If npm install fails, the node_modules directory is removednpm install ||Remove-Item-Recurse./node_modules For more information, seeAbout_Pipeline_Chain_Operators. Range operator.. The range operator can be used to represent an array of sequential integers or characters. The values joined by...