hashtable里还有一个ContainsValue在你不知道key的时候判断一个value是否存在,而不用遍历整个集合. 删除和清空键 你可以使用Remove方法来删除一个键 $person.remove('age') 把键的值设置为$null仅仅留下一个空key(值为$null,并不能把键删除掉) 一个常用的把集合清空的方法是把它的值设置为一个空集合 $person...
'{ "a": "b" }'|ConvertFrom-Json-AsHashtableName Value --- --- a b PowerShell 6.2 已將Depth參數新增至ConvertFrom-Json。 預設深度為 1024。 直接從檔案讀取 如果您有使用PowerShell語法包含哈希表的檔案,則可以直接匯入它。 PowerShell $content...
$hashtable.<key> <value> 例如: PowerShell 复制 $hash.Number 1 $hash.Color Blue 哈希表具有 Count 属性,指示 hashtable中的键值对数。 PowerShell 复制 $hash.count 3 hashtable 表不是数组,因此不能将整数用作 hashtable中的索引,但可以使用键名称为 hashtable编制索引。如果键是字符串值,请将...
问Powershell -将重复的键但不同的值添加到哈希表中EN通常为了保证我们从网上下载的文件的完整性和可靠...
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The first thing to notice is that if you pipe your hashtable, the pipe treats it like one object. PowerShell Copy PS> $ageList | Measure-Object count : 1 Even though the Count property tells you how many values it contains. PowerShell Copy PS> $ageList.Count 2 You get aroun...
Containment comparison operators determine whether a test value appears in a reference set (-in,-notin,-contains,-notcontains). Type comparison operators (-is,-isnot) determine whether an object is of a given type. For more information, seeabout_Comparison_Operators. ...
You start by creating a hashtable, which is also called a dictionary or associative array. A hashtable is a collection of key=value pairs. A basic hashtable contains two keys, each with a single value. It looks like this in Windows PowerShell:Copy ...
ValueFromPipelineByPropertyName=$true, Position=0)] [string] $name, # Param2 help description [int] $id ) $eventcritea = @{logname=$name;id=$id} $Events =get-winevent -FilterHashtable $eventcritea -MaxEvents 1000 #$Events = Get-WinEvent -ComputerName syddc01 -FilterHashtable $event...
也有一个ContainsValue()函数 05.移除键值和清空哈希表 $person.remove('age') 一种清空哈希表的方法是用空哈希表重新初始化 $person = @{} 不过我们最好还是使用clear方法 $person.clear() 06.一些特殊的技巧 001.有序的哈希表 一般情况下,哈希表是无序的。 不过,我们可以用ordered关键字,然后声明的哈希表...