CrLf

这用纯P比较麻烦，sed应该很方便，等人来~

建议求助的时候言简意赅，要不然估计很多人会没耐心看...举例时化繁为简，就像演戏时不需要把每个人名字都报出来，配角只需要说路人甲、路人乙就行了

CrLf

楼上这样会漏字。

1:

@echo off&setlocal enabledelayedexpansion
(for /f "delims=" %%i in (a.txt) do (
    set tmp=%%i
    set /a 总是=0,特征=0
    for /l %%a in (0 1 1000) do (
        if !总是!==0 set /p=!tmp:~%%a,1!<nul
        if "!tmp:~%%a,2!"=="总是" set 总是=1&set /p=是<nul
        if "!tmp:~%%a,2!"=="特征" (
            if !总是!==1 set /p=!tmp:~%%a,1!<nul
            set 总是=0
        )
    )
    echo;
))>b.txt
pause
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2:

@echo off&setlocal enabledelayedexpansion
(for /f "delims=" %%i in (a.txt) do (
    set tmp=%%i
    set /a 总是=0,特征=0
    for /l %%a in (0 1 1000) do (
        set /a "特征-=^!^!特征"
        if "!tmp:~%%a,2!"=="总是" set 总是=1
        if "!tmp:~%%a,2!"=="特征" (
            set /a 总是=0,特征=2
        )
        if !总是!==0 if !特征!==0 set /p=!tmp:~%%a,1!<nul
    )
    echo;
))>b.txt
pause
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3:

@echo off&setlocal enabledelayedexpansion
(for /f "delims=" %%i in (a.txt) do (
    set tmp=%%i
    set "tmp=!tmp:总是=!"&set "tmp=!tmp:特征=!"
for %%a in ("!tmp!") do echo %%~a
))>b.txt
pause
::效率高，但是遇到特殊字符可能出错
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@echo off &setlocal enabledelayedexpansion
(for /f "delims=" %%i in (a.txt) do (
    set tmp=%%i
    set /a 总是=0,特征=0
    for /l %%a in (0 1 1000) do (
        set /a "总是-=^!^!总是","特征-=^!^!特征"
        if "!tmp:~%%a,2!"=="总是" set 总是=2
        if "!tmp:~%%a,2!"=="特征" set 特征=2
        if !总是!==0 if !特征!==0 set /p "m=!tmp:~%%a,1!"<nul
    )
    echo;
))2>nul
pause
::效率低，但是保险
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