[文本处理] 批处理如何获得指定字符前后的字符？

grep -o "..教父.." 1.txt | sed "s/教父//" | more >2.txt
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grep -o "《.*》" 1.txt | sed "s/《\|》//g" | more >2.txt
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@echo off&setlocal enabledelayedexpansion
for /f "delims=" %%a in (a.txt) do set "str=!str!%%a"
:lp
set "a="&set "b="
for /f "tokens=1* delims=教父" %%a in ("!str!") do (
    set "a=%%a"&set "a=!a:~-1!"
    if "%%b" neq "" set "b=%%b"&set "b=!b:~,1!"
    set "var=!var!!a!!b!"
    if "%%b" neq "" set "str=%%b"&goto lp
)
echo !var:~,-1!
pause>nul
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Dim fso, vbstr
Set fso = CreateObject("scripting.filesystemobject")
vbstr = fso.OpenTextFile("a.txt", 1).ReadAll()
Set RegEx = New RegExp
regex.Global = True
regex.Pattern = ".*(.)教父(.).*|\s|[^$]"
vbstr = regex.Replace(vbstr, "$1$2")
MsgBox vbstr
Set regex = Nothing
Set fso = Nothing
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@echo off&setlocal enabledelayedexpansion
for /f "delims=" %%a in (a.txt) do set "str=!str!%%a"
:lp
set "str=%str:*《=%"&set "a=!str:*》=!"
set "var=!var!!str:》%a%=!"&set "str=%str:*》=%"
for /f "delims=《》" %%a in ("%str%") do if "%%a" neq "%str%" goto lp
echo %var%
pause>nul
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Dim fso, vbstr, rgstr, re
Set fso = CreateObject("scripting.filesystemobject")
vbstr = fso.OpenTextFile("a.txt", 1).ReadAll()
Set RegEx = New RegExp
regex.Global = True
regex.Pattern = "《([^《》]+)》"
For Each rgstr In regex.Execute(vbstr)
  re = re & rgstr.Submatches(0)
Next 
MsgBox re
Set regex = Nothing
Set fso = Nothing
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@echo off
for /f "delims=" %%i in (a.txt) do (
   set str=%%i
   setlocal enabledelayedexpansion
   set var=!str:*教父=!
   if not "!var!"=="!str!" (
      for %%j in ("!var!") do set num=!str:%%~j=!
      if "!num:~2,1!"=="" set num=!var!!num!
      echo 左!num:~-3,1!    !var:~0,1!右
    )
   endlocal
)
pause
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@echo off&setlocal enabledelayedexpansion
set str=123《abc》456《def》789
for /l %%a in (1 1 10) do (
   set str=!str:*《=!
   for /f "tokens=1* delims=》" %%b in ("!str!《") do (
      if "%%c" neq "" echo %%b
      set str=%%c
   )
)
pause
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@echo off&setlocal enabledelayedexpansion
for /f "delims=" %%i in ('type "1.txt"^|findstr "《教父》"') do (
	set "v=%%i"&set "v=!v:《教父》=@!"
	if "!v:~,1!"=="@" (echo !v:~1,1! ) else (
		if "!v:~-1!"=="@" (echo  !v:~-2,1!) else (
			for /f "tokens=1,2 delims=@" %%j in ("!v!") do (
				set "v1=%%j"&set "v2=%%k"
				echo !v1:~-1! !v2:~,1!
			)
		)
	)
)
pause>nul
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