yhcfsr

@echo off
set "ATXT=a.txt"
set "BTXT=b.txt"
(for /f "tokens=1,2* delims=-" %%a in ('type "%ATXT%"') do (
    set "flag="
    for /f "tokens=2 delims=-" %%i in ('findstr /c:"%%a" "%BTXT%"') do (set "flag=1"&echo;%%a----%%i----%%c)
    if not defined flag echo;%%a----%%b----%%c
))>结果.txt
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