<#*,:&cls
@echo off
cd /d "%~dp0"
powershell -C "Set-Location -LiteralPath ([Environment]::CurrentDirectory);. ([ScriptBlock]::Create((Get-Content -LiteralPath \"%~f0\" -ReadCount 0 | Out-String)))"
pause
exit /b
#>
$file1 = "123.txt"
$file2 = "abc.txt"
# 格式化字符串
$format = '{0}+ABC.{1}'
$ht = @{}
foreach ($line in (Get-Content -ReadCount 0 -LiteralPath $file1)) {
  $k, $v = $line -split ',', 2
  $ht[$k] = $v
}

$(foreach ($line in (Get-Content -ReadCount 0 -LiteralPath $file2)) {
    $k, $v = $line -split '_', 2
    if ($ht.ContainsKey($k)) {
      $format -f ($ht[$k]), $v
    }
  }) | Set-Content -LiteralPath .\a.txt
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@echo off
cd /d "%~dp0"
setlocal enabledelayedexpansion
for /f "tokens=1-2 delims=," %%i in ('type "123.txt"') do (
    set "%%i=%%j"
)
(for /f "tokens=1-2 delims=_" %%i in ('type "abc.txt"') do (
    if defined %%i (
        echo !%%i!+ABC.%%j
    )
))>"a.txt"
复制代码