@（）在Powershell中的含义是什么？

Question

I've seen this a few times in Powershell, and was curious what it meant : 我在Powershell中已经看过几次了，并且好奇它意味着什么：

@()

For example, in this block : 例如，在此块中：

    [datetime]$StartDate = ([datetime]::now.ToShortDateString())
    $TodaysMail = @()

thanks ! 谢谢！

Answer 1

The @ indicates an array. @表示一个数组。 @() simply creates an empty array. @()只是创建一个空数组。 Ie this snippet: 即这个片段：

$TodaysMail = @()

Would yield a variable TodaysMail representing an empty array. 会产生一个表示空数组的变量TodaysMail 。