PowerShell中显示文件大小为KB，MB，GB或 [英] Powershell display file size as KB, MB, or GB

问题描述

我有一个PowerShell脚本，获取指定目录的文件大小的一个部分。

I have a section of a powershell script that gets the file size of a specified directory.

我能够得到测量到的变量不同单位的值，但我不知道显示相应的一个好方法。

I am able to get the values for different units of measurement into variables, but I don't know a good way to display the appropriate one.

$DirSize = "{0:N2}" -f (($DirArray | Measure-Object -property length -sum).sum)
$DirSizeKB = "{0:N2}" -f (($DirArray | Measure-Object -property length -sum).sum / 1KB)
$DirSizeMB = "{0:N2}" -f (($DirArray | Measure-Object -property length -sum).sum / 1MB)
$DirSizeGB = "{0:N2}" -f (($DirArray | Measure-Object -property length -sum).sum / 1GB)

如果字节数至少为1KB欲显示的KB值，如果KB的数目是至少有1 MB欲显示的MB等

If the number of bytes is at least 1KB I want the KB value displayed, If the number of KB is at least 1 MB I want MBs displayed and so on.

有谁知道做到这一点的好办法？

Does anyone know a good way to accomplish this?

感谢。

推荐答案

使用交换机或一组if语句。你的逻辑（伪code）应该是这样的：

Use a switch or a set of "if" statements. Your logic (pseudocode) should look like this:

1. 是至少1GB大小？是的，在GB（否则...）显示


2. 是大小至少为1MB？是的，在MB（否则...）显示


3. 在KB显示。

请注意，您应该以相反的顺序从最大的尺寸最小的是测试。是的，我可以写在code你，但我怀疑你知道足以让到上述工作的脚本。这只是你曾经难倒了该方法。

Note that you should be testing in reverse order from the largest size to the smallest. Yes, I could have written the code for you but I suspect you know enough to turn the above into a working script. It's just the approach that had you stumped.

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