[文本处理] [已解决]批处理如何从一个文件中提取信息？

@echo off
for /f "tokens=1,2" %%a in (200910.txt) do (
     if defined _%%a (
        if exist "%%b" del /f /q "%%b"
        ) else (
       set "_%%a=a"
    )
)
     
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@echo off
set notmatch=200910.txt

for /f "tokens=1,2" %%i in (%notmatch%) do (
echo hi>temp.txt
for /f "skip=1 tokens=1,2" %%k in (%notmatch%) do (
if %%i == %%k (

echo %%k %%l>>match.txt

)else echo %%k %%l>>temp.txt 

)
copy temp.txt temp1.txt
set notmatch=temp1.txt
)
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@echo off
setlocal enabledelayedexpansion

echo classed>match.txt             rem  多次执行此批处理文件时清空match文件

set  notmatch=200910.txt      

for /f  "tokens=1,2" %%i in (!notmatch!) do (

echo unsame>temp.txt               rem  下一轮循环开始，清空temp.txt文件

for /f  "tokens=1,2" %%k in (!notmatch!) do (

if  %%i == %%k (

echo %%k %%l>>match.txt            rem  match文本文件始终累积写入

)else echo %%k %%l>>temp.txt 

)
copy temp.txt temp1.txt
set notmatch=temp1.txt
)
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@echo off
for /f "tokens=1,2" %%a in (200910.txt) do (
     if not exist "%temp%\$%%a" (
        cd.>"%temp%\$%%a"
        ) else (
        if exist "%%b" del /f /q "%%b"
     )
)
del /f /q "%temp%\$*"
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@echo off & setlocal enabledelayedexpansion
for /f "tokens=1* delims= " %%a in ('sort 200910.txt') do (
   if "!str!"=="%%a" (
      if exist "%%b" echo del /q "%%b"
    )
    set "str=%%a"
)
pause
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