PowerShell 复制 PS> [int[]] $numbers = 1,2,3 PS> [int[]] $numbers2 = 'one','two','three' ERROR: Cannot convert value "one" to type "System.Int32". Input string was not in a correct format." PS> [string[]] $stri
Suppose we have an array with 100 items in it, and we need to echo back the value of items 37-79. If we want to, we can list each of those index numbers. Or, we can use the numeric range operator instead: 复制 $a[37..79] Nice, huh? To add a little icing to the c...
Suppose we have an array with 100 items in it, and we need to echo back the value of items 37-79. If we want to, we can list each of those index numbers. Or, we can use the numeric range operator instead: Copy $a[37..79] Nice, huh? To add a little icing to the cake,...
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An array is a collection of elements, such as strings, numbers, or objects, stored in a single variable. In PowerShell, you can create an array by enclosing the elements in parentheses and separating them with commas. For example:
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functionAdd-Numbers([int]$One, [int]$Two) {$One+$Two} While the first method is preferred, there's no difference between these two methods. When you run the function, the value you supply for a parameter is assigned to a variable that contains the parameter name. The value of that va...
If you enter one number as the value of this parameter, that number determines the number of lines captured before and after the match. If you enter two numbers as the value, the first number determines the number of lines before the match and the second number determines the number of lin...
Negative numbers count from the end of the array. For example, "-1" refers to the last element of the array. To display the last three elements of the array, in index ascending order, type: PowerShell Copy $a = 0 .. 9 $a[-3..-1] Output Copy 7 8 9 If you type negativ...
each letter from the word stored in$w. To be useful, I need to store the array of numbers in a variable, as shown here: $n = $w.ToCharArray() | % {$ltrFirst["$_"]} Decode I want to be able to decode the numbers and convert them back into a word. To do this, I use the...