@echo off&setlocal enabledelayedexpansion
for /f "tokens=1-2" %%i in (1.txt) do (
   if not "%%i"=="%%j" (
      echo %%i %%j>>2.txt
    ) else (
      set str=%%i&set var=!str:~0,2!
      echo !str:!var!=-! !str:!var!=-!>>2.txt
    )
)

pause
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@echo off&setlocal enabledelayedexpansion
(for /f "tokens=1-2" %%i in (1.txt) do (
   if not "%%i"=="%%j" (
      echo %%i %%j
    ) else (
      set "str=%%i"
      for %%a in ("!str:~,2!") do echo !str:%%~a=-! !str:%%~a=-!
    )
)>>2.txt
复制代码