在两个 .JSON 文件上使用 Compare-Object 后，有没有办法对 PSCustomObjects 进行排序？答案

【问题标题】：Is there a way to get sorted PSCustomObjects after using Compare-Object on two .JSON files?在两个 .JSON 文件上使用 Compare-Object 后，有没有办法对 PSCustomObjects 进行排序？
【发布时间】：2020-07-01 12:21:51
【问题描述】：

我正在比较 .JSON 文件，使用 Compare-Object 像这样：

# Compare two files 
$BLF = (Get-Content -Path C:\Users\...\Documents\Android1.json)
$CLF = (Get-Content -Path C:\Users\...\Documents\Android2.json)

$a = Compare-Object -ReferenceObject $BLF -DifferenceObject $CLF -IncludeEqual

那么$a 就是System.Array。它包含 .JSON 文件中的所有行，每个都在 InputObject 和 SideIndicator 中以显示差异。因此对于诸如

之类的差异

# From file 1  
"workProfilePasswordMinimumLength":  false,
"workProfilePasswordMinLowerCaseCharacters":  false,
"workProfilePasswordMinUpperCaseCharacters":  null,
"deviceManagementApplicabilityRuleOsEdition":  null,

# From file 2 
"workProfilePasswordMinimumLength":  true,
"workProfilePasswordMinLowerCaseCharacters":  false,
"workProfilePasswordMinUpperCaseCharacters":  null,
"deviceManagementApplicabilityRuleOsEdition":  true,

比较函数给出使用

$a.psobject.ImmediateBaseObject

输出：

InputObject                                              SideIndicator
-----------                                              -------------
    "workProfilePasswordMinLowerCaseCharacters":  false, ==           
    "workProfilePasswordMinUpperCaseCharacters":  null,  ==           
    "workProfilePasswordMinimumLength":  true,              =>           
    "deviceManagementApplicabilityRuleOsEdition":  true, =>           
    "workProfilePasswordMinimumLength":  false,             <=           
    "deviceManagementApplicabilityRuleOsEdition":  null, <=

我的问题是：我想对这些 InputObjects 进行排序，使它们像这样：

InputObject                                              SideIndicator
-----------                                              -------------
    "workProfilePasswordMinLowerCaseCharacters":  false, ==           
    "workProfilePasswordMinUpperCaseCharacters":  null,  ==           
    "workProfilePasswordMinimumLength":  true,              =>           
    "workProfilePasswordMinimumLength":  false,             <=     
    "deviceManagementApplicabilityRuleOsEdition":  true, =>     
    "deviceManagementApplicabilityRuleOsEdition":  null, <=

这样，当变量不同时，对匹配的名称进行排序。如何对它们进行排序？

【问题讨论】：

最简单的解决方案通常很有效：Sort-Object

标签： powershell sorting pscustomobject

【解决方案1】：

您可以像这样将Compare-Object cmdlet 的输出通过管道传输到Sort-Object

Compare-Object -ReferenceObject $BLF -DifferenceObject $CLF -IncludeEqual |
    Sort-Object -Property InputObject

由于它按 InputProperty 对输出进行排序，因此您得到

InputObject                                         SideIndicator   
-----------                                         -------------   
"deviceManagementApplicabilityRuleOsEdition":  null <=
"deviceManagementApplicabilityRuleOsEdition":  true =>
"workProfilePasswordMinimumLength":  false          <=
"workProfilePasswordMinimumLength":  true           =>
"workProfilePasswordMinLowerCaseCharacters":  false ==
"workProfilePasswordMinUpperCaseCharacters":  null  ==

这与您发布的输出略有不同。如果您需要与发布的完全相同的输出，则可以使用自定义排序表达式。

Sort-Object -Property @{Expression={ <some expression> }}

【讨论】：