如何选择“测量对象"的值?直接地? (电源外壳) [英] How to select a value of "measure-object" directly? (powershell)

问题描述

我想知道一些事情.不是很重要，但我现在很好奇...

I am wondering about something. Not very important, but I am curious now...

假设我们有一个数组:

PS C:\> $array
3
1129
1063
1139
1299
4446
1135
1096
1216
1075

现在，我们希望获得上述值的平均值.所以我用Measure-Object:

And now we want to have the average of the values above. So I use Measure-Object:

PS C:\> $array | Measure-Object -Average | select Average

Average
-------
1360,1

好的.那很好.但是，如果我只想选择该值，而不用列名称为"average"的某种表"，那该怎么办?我只想将值"1360,1"设为String或类似的内容.

okay. That's nice. But what if I only want to select the value, without getting some kind of "table" with the column name "average". I only want to have the value "1360,1" like a String or something.

我只知道这种方式:

PS C:\> $tmp = $array | Measure-Object -Average | select Average

PS C:\> $tmp.Average
1360,1

这可行，但是通过这种方式，我需要一个确实不需要的临时变量...我认为必须有另一种简单的方法才能在一行中得到它.

So this works, but in this way I need a temporary variable which is not really needed... I think there must be an other easy way to get this in one line.

但是我不明白...对不起！你能帮忙吗?

But I don't get it... sry! Can you help?

推荐答案

此:

$tmp = $array | Measure-Object -Average | select -expand Average

或者这个:

$tmp = ($array | Measure-Object -Average).average

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