batman

重写csv部分，楼主自己将替换和这段合起来吧：

@echo off
for /r e:\测试 %%a in (*.csv) do (
     (for /f "usebackq tokens=1* delims=," %%b in ("%%a") do echo %%b,%%b,%%c)>"%%~dpatem"
     del /q "%%a"&ren "%%~dpatem" "%%~nxa"
)
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batman

@echo off&setlocal enabledelayedexpansion
for /r e:\测试 %%a in (*.csv) do (
     (for /f "usebackq delims=" %%b in ("%%a") do (
          set "var="&call :lp "%%b"
          for /f "tokens=1* delims=," %%b in ("!var!") do echo %%b,%%b,%%c
      ))>"%%~dpatem"
      del /q "%%a"&ren "%%~dpatem" "%%~nxa"
)
goto :eof
:lp
if not defined str set "str=%~1"
for /f "tokens=1* delims=*" %%a in ("%str%") do (
     set "var=!var!;%%a"
     if "%%b" neq "" set "str=%%b"&goto lp
)
set "var=!var:~1!"&set "str="         
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