问如果一行包含使用powershell或Javascript的=符号后的空值，如何删除行？

EN

$result = Get-Content -Path 'X:\theInputFile.txt' | Where-Object { $_ -match '^\w+\s*=\s*\S+' }

$string = @'
variable1 = value1
variable2 = value2
variable3 =
variable4 = value4
variable5 = 
'@ 

$result = $string -split '\r?\n' | Where-Object { $_ -match '^\w+\s*=\s*\S+' }

variable1 = value1
variable2 = value2
variable4 = value4

$result | Set-Content -Path 'X:\theNewInputFile.txt'

^          Assert position at the beginning of the string
\w         Match a single character that is a “word character” (letters, digits, etc.)
   +       Between one and unlimited times, as many times as possible, giving back as needed (greedy)
\s         Match a single character that is a “whitespace character” (spaces, tabs, line breaks, etc.)
   *       Between zero and unlimited times, as many times as possible, giving back as needed (greedy)
=          Match the character “=” literally
\s         Match a single character that is a “whitespace character” (spaces, tabs, line breaks, etc.)
   *       Between zero and unlimited times, as many times as possible, giving back as needed (greedy)
\S         Match a single character that is a “non-whitespace character”
   +       Between one and unlimited times, as many times as possible, giving back as needed (greedy)