idwma

@echo off
setlocal enabledelayedexpansion
(for /f "delims=" %%i in (1.txt) do (
    set a=%%i
    set a=!a:~0,19!一样的!a:~21!
    if not defined !a! (
        set !a!=1
        echo;!a!
    )
))>2.txt
pause
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idwma

回复 3# a545910540

@echo off
setlocal enabledelayedexpansion
for /f "delims=-" %%i in (1.txt) do (
    set a=%%i
    set a=!a:~0,19!一样的!a:~21!
    if not defined !a! (
        set /a #!a!+=1
    )
)
for /f "tokens=1,2 delims=#=" %%i in ('set #') do if %%j==1 echo %%i
pause
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idwma

回复 5# a545910540


    没有系统的学过呀,在这里多回答问题不会的就搜以前的帖子灵活运用.

@echo off
setlocal enabledelayedexpansion
for /f "tokens=1* delims=-" %%i in (1.txt) do (
    set a=%%i
    set a=!a:~0,19!一样的!a:~21!
    set /a !a!+=1
    call;set #!a!-%%j=%%!a!%%
)
for /f "tokens=1,2 delims=#=" %%i in ('set #') do if %%j==1 echo %%i
pause
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