ForEach()允许循环访问数组中的所有元素,并为数组的每个元素执行给定操作。ForEach() 方法具有多个执行不同操作的重载。Syntax 复制 ForEach(scriptblock expression) ForEach(scriptblock expression, object[] arguments) ForEach(type convertToType) ForEach(string propertyName) ForEach(string propertyName, ...
$array = foreach ( $node in (1..5)) { "ATX-SQL-$node" } 数组类型默认情况下,PowerShell 中的数组按 [PSObject[]] 类型创建。 这使它可以包含任何类型的对象或值。 这是因为所有一切都是从 PSObject 类型继承的。强类型数组你可以使用类似的语法来创建任意类型的数组。 创建强类型数组时,它只能包含...
string[] Split(char[] separator, int count) string[] Split(char[] separator, System.StringSplitOptions options) string[] Split(char[] separator, int count, System.StringSplitOptions options) string[] Split(string[] separator, System.StringSplitOptions options) string[] Split(string[] separator, int...
As an example, this can be useful when we have very large input data of comma-separated input with 15 columns and we are only interested in the third column from the end. If we were to use the-split','operator, we would create 15 new strings and an array for each line. On the ot...
Error: Cannot index into a null array. 04.数组长度 注意$null的长度返回0 PS>$data.count4PS>$date=Get-DatePS>$date.count1PS>$null.count0 $data.GetUpperBound(0)获取数组的边界索引 PS>$data.GetUpperBound(0)3PS>$data[$data.GetUpperBound(0) ] ...
It can also select unique objects from an array of objects, or it can select a specified number of objects from the beginning or end of an array of objects. Select-String Finds text in strings and files. Select-XML Finds text in an XML string or document. Send-MailMessage Sends an e-...
In this example, the variable$trimmedStringwill contain the string “Hello, World!” with the leading and trailing hash symbols removed. Example 2: Trim specific Characters from the Start and End of a String The Trim() methods also allow for custom trimming rules by specifying an array of ch...
Applying Multiple conditions for each row in CSV file Approve Updates By Computer Groupt Are there commands to use instead of using certtmpl.msc? Argument was specified as a script block, and no input exists array and array list with custom object Array Contains String not comparing. Array Cou...
The-splitand-joinoperators divide and combine substrings. The-splitoperator splits a string into substrings. The-joinoperator concatenates multiple strings into a single string. For more information, seeabout_Splitandabout_Join. Type Operators ...
First I check that a column contains an open bracket character ([). If it doesn’t, I can split the string at the colon character (:). If not then I need to split is at the string']:'and also trim off the opening bracket. ...