您可以使用 . 成员访问运算符:

You can either use the . member access operator:

$ID = (Call-ThatReturnsObject).ID

或Select-Object -ExpandProperty:

$ID = Call-ThatReturnsObject |Select-Object -ExpandProperty ID

或ForEach-Object:

$ID = Call-ThatReturnsObject |ForEach-Object -MemberName ID
# or 
$ID = Call-ThatReturnsObject |ForEach-Object { $_.ID }