$array1 += $array2 $array1 Output 1 2 3 4 5 6 7 8 1 2 3 4 5 6 The above code block is similar to the previous one but uses the += operator to add $array2 to the end of $array1. The += operator is a shorthand way of writing $array1 = $array1 + $array2, where...
/// </remarks> /// <value>Array of patterns to search.</value> [Parameter( Position = 1, ParameterSetName = "PatternParameterSet", Mandatory = true)] public string[] Pattern { get { return patterns; } set { patterns = value; } } private string[] patterns; private Regex[] ...
PS> $empty = $null PS> $empty[0] Error: Cannot index into a null array. 因此,在尝试访问数组中的元素之前,请确保数组不是 $null。Count数组和其他集合具有计数属性,可告知数组中有多少项。PowerShell 复制 PS> $data.count 4 PowerShell 3.0 向大多数对象添加了计数属性。 你可以使用单个对象,它应该...
When no data type is specified, PowerShell creates each array as an object array (System.Object[]). To determine the data type of an array, use the GetType() method. For example:PowerShell Copy $A.GetType() To create a strongly typed array, that is, an array that can contain only...
$tests= @{'Direct Assignment'= {param($count)$result=foreach($iin1..$count) {$i} }'List<T>.Add(T)'= {param($count)$result= [Collections.Generic.List[int]]::new()foreach($iin1..$count) {$result.Add($i) } }'Array+= Operator'= {param($count)$result= @()foreach($iin...
"D:\\Program Files\\Git\\mingw64\\share\\git\\git-for-windows.ico", // git的图标 "historySize": 9001, // 终端窗口记忆大小 "padding": "0, 0, 0, 0", // 边距 "snapOnInput": true, "useAcrylic": false // 是否开启透明度 } ] }, // Add custom color schemes to this array. ...
The other difference is that the static Sort method from the System.Array class is way faster. To check this, I like to use the Measure-Command cmdlet. To ensure I have a large enough data set that will take a decent amount of time to sort, I create two random arrays by using the ...
2. 简单重复型:Other times, you need only to accomplish a single task (for example, retrieving the results of a WMI query) but need to invoke that task repeatedly for a large amount of data. In those situations, PowerShell’s scripting statements, pipeline support, and data management cmdlet...
$dataString=$web_client.DownloadString($url) $build_infoJson=$web_client.DownloadString($url) | ConvertFrom-Json; # simpleforecast forecastday has 10 array object $forecastdays=$build_infoJson.forecast.simpleforecast.forecastday ; $forecastdaysArraryList = New-Object -TypeName System.Collections.Arra...
Special operators have specific use-cases that don't fit into any other operator group. For example, special operators allow you to run commands, change a value's data type, or retrieve elements from an array. Grouping operator( ) As in other languages,(...)serves to override operator prec...