通过json中的数组元素名获取值

PS> $json = '{
  "DEV": [
    {
      "GitEmail": "asd@asd.com"
    }
  ],
  "TEST": [
    {
      "GitEmail": "asd1@asd.com"
    }
  ],
  "PROD": [
    {
      "GitEmail": "asd2@asd.com"
    }
  ]
}' | ConvertFrom-Json

PS> ($json.psobject.Properties | ? {$_.Value -match "asd@asd.com"}).Name

$json

$json.psobject.properties.name

DEV
TEST
PROD

foreach

foreach ($dev in $json.psobject.properties.name)
{
  if($json.$dev.GitEmail -eq "asd@asd.com") {
    echo $dev
  }
}

    $a= @"
{
  "DEV": [
    {
      "GitEmail": "asd@asd.com"
    }
  ],
  "TEST": [
    {
      "GitEmail": "asd1@asd.com"
    }
  ],
  "PROD": [
    {
      "GitEmail": "asd2@asd.com"
    }
  ]
}  
"@
$JsonObject= ConvertFrom-Json -InputObject $a 
$NAMES= $JsonObject|Get-Member |WHERE MemberType -EQ NOTEPROPERTY
$NAMES|Foreach-Object {IF($JsonObject.$($_.NAME).GITEMAIL -EQ 'asd@asd.com'){$_.NAME}}

DEV