$ageList['Kevin']$ageList['Alex'] 當我想要凱文的年齡時,我用他的名字來存取它。 我們也可以使用此方法,將值新增或更新至哈希表。 這就像使用Add()上述方法一樣。 PowerShell $ageList= @{}$key='Kevin'$value=36$ageList[$key] =$value$ageList['Alex'] =9 ...
Ordered dictionaries differ from hashtables in that the keys always appear in the order in which you list them. The order of keys in a hashtable isn't deterministic. The keys and value in hashtables are also .NET objects. They're most often strings or integers, but they can have any...
Each key in a hash table is associated with a value.The following table depicts how an array can store a list of IP addresses.Table 1: How an array stores a list of IP addressesExpand table Index numberValue 0 172.16.0.10 1 172.16.0.11 2 172.16.0.40...
示例17:使用 FilterHashtable 从应用程序日志获取事件此示例使用 FilterHashtable 参数从应用程序日志中获取事件。 哈希表将使用键/值对。 有关 FilterHashtable 参数的详细信息,请参阅 使用FilterHashtable 创建 Get-WinEvent 查询。有关哈希表的详细信息,请参阅 about_Hash_Tables。 PowerShell 复制 $Date = (...
Adding or removing items from a hash table is similar to an array list. You use the methodsAdd()andRemove(). For example: You can also update the value for a key. For example: To review all properties and methods available for a hash table, use theGet-Membercmdlet. For ex...
If subsequent result sets after the first set have the same column list, their rows are appended to the formatted table that contains the rows that were returned by the first result set. You can display SQL Server message output, such as those that result from the SQL PRINT statement, by ...
When you create a function, you can declare the parameters with the param keyword or by adding a comma-separated list of parameters in parentheses after the function name. In an event action, the $args variable contains objects that represent the event arguments of the event that's being ...
Starting PowerShell 3.0, when you use the operator on a list collection object that doesn't have the member, PowerShell automatically enumerates the items in that collection and uses the operator on each of them. For more information, seeabout_Member-Access_Enumeration. ...
PS C:\> @{a=1;b=2;c=3} | format-list * Name : c Key : c Value : 3 Name : b Key : b Value : 2 Name : a Key : a Value : 1 So a hash table is made up of a series of key/value pairs that are enclosed inside a pair of curly brackets and preceded by an at sign...
Hash tables Hash tables are data structures similar to arrays. A PowerShell array stores multiple single items, but with a hash table each item or value is stored using a key or value pair. An array can't store multiple values under each element, while a hash table can. ...