我在工作中经常用到它,现在想停下来讨论一下它(hashtable).昨天夜里小组会议后我教了一些同事如何使用hashtable,我很快意识到初识hashtable时我也曾经有与他们相同的困惑.Hashtable在powershell里着实非常重要因此我们需要对它有充会的理解. hashtable是元素的集合 首先,我想让你们把hastable看作传统意义上定义的集合....
$array= @(1,2,3,5,7,11) 将项放入数组后,可以使用foreach来循环访问该列表,或者使用索引访问数组中的各个元素。 PowerShell foreach($itemin$array) {Write-Output$item}Write-Output$array[3] 还可以使用索引以相同方式更新值。 PowerShell $array[2] =13 ...
You’ll notice something funny about the last example: we had to cast or convert the sorted list into an array of strings. This is because the hashtable keys mechanism expects strings, not objects, as keys. There’s much more on casts later in this chapter. 你会注意到最后一个例子中有些...
PS> ([array]$hash.Values)[2] one 在字典中使用索引表示法时,括号内的值会根据其类型进行解释。 如果值为整数,则将其视为值集合中的索引。 如果值不是整数,则它被视为键名称。 例如: PowerShell PS>$dictionary[1] two PS> ([array]$dictionary.Values)[1] two PS>$dictionary[[Object]1] one PS...
$array[2] = 13 I just scratched the surface on arrays but that should put them into the right context as I move onto hashtables. What is a hashtable? I'm going to start with a basic technical description of what hashtables are, in the general sense, before I shift into the o...
{ConvertTo-Hashtable -InputObject $object})## Return the array but don't enumerate it because the object may be pretty complexWrite-Output -NoEnumerate $collection}elseif($InputObject-is[psobject]){$hash = @{}foreach($property in $InputObject.PSObject.Properties) {$hash[$property.Name] =...
基于语言的类型转换:当目标类型为void,Boolean,String,Array,Hashtable,PSReference(i.e.: [ref]),XmlDocument,Delegate和Enum时,基于语言的类型转换(.NET提供的)开始工作。 Parse 转换:如果目标类型包含了Parse()方法,则采用它。 Static Create 转换:如果目标类型包含静态的Create方法,则采用它。
Hash table literal syntax@{} Similar to the array subexpression, this syntax is used to declare a hash table. For more information, seeabout_Hash_Tables. Call operator& Runs a command, script, or script block. The call operator, also known as theinvocation operator, lets you run commands ...
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I know you guys seem to love hash tables, but that seems to be a lot of overhead for a simple array. Can you help? —PT Hello PT, Microsoft Scripting Guy, Ed Wilson, is here. You are right. You are also right, and unfortunately, you are right—but I can help solve that ...