Question

所以，假设我有这个变量％s％，我必须取出所有符号，因为它们会与代码相互关联..这些符号包括：

〜`@＃$％^＆安培; *（）_- + = {[}] | \ :;“'＆LT;！？，＆GT; /

所以基本上每个符号我都能想到打字，我应该怎么做呢？以下代码是一个巨大的失败

SET s=!s:"^~"=""!
SET s=!s:"`"=""!
SET s=!s:"^!"=""!
SET s=!s:"@"=""!
SET s=!s:"#"=""!
SET s=!s:"^$"=""!
SET s=!s:"^%"=""!
SET s=!s:"^^"=""!
SET s=!s:"&"=""!
SET s=!s:"*"=""!
SET s=!s:"("=""!
SET s=!s:")"=""!
SET s=!s:"-"=""!
SET s=!s:"_"=""!
SET s=!s:"+"=""!
SET s=!s:"="=""!
SET s=!s:"{"=""!
SET s=!s:"}"=""!
SET s=!s:"["=""!
SET s=!s:"]"=""!
SET s=!s:"^|"=""!
SET s=!s:"\"=""!
SET s=!s:":"=""!
SET s=!s:";"=""!
SET s=!s:"'"=""!
SET s=!s:'"'=""!
SET s=!s:"<"=""!
SET s=!s:","=""!
SET s=!s:">"=""!
SET s=!s:"."=""!
SET s=!s:"?"=""!
SET s=!s:"/"=""!

我在互联网上搜索过，没有发现任何想法？

Answer 1

第一步可以是这个，它从badChars列表和感叹号中删除所有字符。
但是字符~*=不能以这种方式替换。

set "str=Hello,;:$%%!&<>x"
setlocal EnableDelayedExpansion

set "badChars=`@#$%%^&()_-+{[}]|\:;'<,>.?/""
for /L %%n in (0,1,30) do (
  for /f "eol=A delims=" %%C in ("!badChars:~%%n,1!") DO (
    if defined str set "str=!str:%%C=!"
  )
)
set "str=%str:!=%"
echo(!str!

Answer 2

我自己没有测试过这段代码，但已经将它作为书签了一段时间。

请参阅此帖子Post #7

中的http://forums.techguy.org/dos-other/823979-solved-removing-special-characters-loop.html

:_GetName
SET /P folder=Folder Name:
Set folder="%folder:"=%"
Setlocal EnableDelayedExpansion
For %%I In (^| ^& ^< ^> ^^ + ^( ^) \ / . @ # $ { } [ ] ' : ` ^%% ^") Do Set folder=!folder:%%I=!
:: Now remove any !
SetLocal DisableDelayedExpansion
Set folder="%folder:!=%"
EndLocal&Set folder=%folder:~1,-1%
:_parse
Set _Flag1=
For /F "Tokens=1* Delims=~=*;,?" %%J In ('Echo !folder!') Do (
    Set folder=%%J%%K
    Set _Flag1=%%J
    Set _Flag2=%%K
)
If NOT "%_Flag2%"=="" Goto _parse
If Not Defined _Flag1 Echo None of the characters you entered are valid. Please try again&Goto _GetName
:: Now revert to previous settings. The Set is needed to pass the
:: Folder variable back to the previous environment
EndLocal&Set folder=%folder%
Echo You said your folder name will be %folder%.
@pause

Answer 3

修改的
如果满足以下所有条件，我的第一次尝试失败：

:StripSymbols在启用延迟扩展时被调用

字符串很长，需要多次迭代

该字符串在第一次迭代后至少有2 !个非符号

第一次尝试通常很快，但是对于需要多次迭代的病理案例，可能会大大减慢。

@echo off setlocal disableDelayedExpansion set "test1=!Hello`@#$%%^&()_-+{[}]|\:;'<,>.?/"~*= World!" call :test test1 set "test2=" call :test test2 set "test3=`@#$%%^&()_-+{[}]|\:;'<,>.?/"~*=!" call :test test3 set "test4=,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,0,1,2,3,4,5,6,7,8,9," call :test test4 exit /b :test StrVar setlocal enableDelayedExpansion echo Before: %~1=!%~1! call :stripSymbols %1 echo After: %~1=!%~1! echo( exit /b :stripSymbols StrVar setlocal enableDelayedExpansion for /f tokens^=1-25*^ delims^=`@#$%%^^^&()_-+{[}]^|\:^;'^<^,^>.?/~*^=!^" %%A in ("a,!%~1!") do ( endlocal set "%~1=%%B%%C%%D%%E%%F%%G%%H%%I%%J%%K%%L%%M%%N%%O%%P%%Q%%R%%S%%T%%U%%V%%W%%X%%Y%%Z" if "%%Z" neq "" goto :stripSymbols ) exit /b

以下是测试结果。注意test5是如何失败的。

Before: test1=!Hello`@#$%^&()_-+{[}]|\:;'<,>.?/"~*= World! After: test1=Hello World Before: test2= After: test2= Before: test3=`@#$%^&()_-+{[}]|\:;'<,>.?/"~*=! After: test3= Before: test4=,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,0,1,2,3,4,5,6,7,8,9, After: test4=ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 Before: test5=,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z!0,1,2,3,4,5,6,7,8,9! After: test5=ABCDEFGHIJKLMNOPQRSTUVWXYZ

这是我的防弹第二次尝试

第二次尝试应该总是很快，而且它也应该是防弹

@echo off setlocal disableDelayedExpansion set "test1=!Hello`@#$%%^&()_-+{[}]|\:;'<,>.?/"~*= World!" call :test test1 set "test2=" call :test test2 set "test3=`@#$%%^&()_-+{[}]|\:;'<,>.?/"~*=!" call :test test3 set "test4=,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,0,1,2,3,4,5,6,7,8,9," call :test test4 set "test5=,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z!0,1,2,3,4,5,6,7,8,9!" call :test test5 exit /b :test StrVar setlocal enableDelayedExpansion echo Before: %~1=!%~1! call :stripSymbols %1 echo After: %~1=!%~1! echo( exit /b :stripSymbols StrVar setlocal enableDelayedExpansion set "str=!%~1!" setlocal disableDelayedExpansion for /l %%N in (1 1 171) do ( setlocal enableDelayedExpansion for /f tokens^=1-25*^ delims^=`@#$%%^^^&(^)_-+{[}]^|\:^;'^<^,^>.?/~*^=!^" %%A in ("a,!str!") do ( endlocal set "str=%%B%%C%%D%%E%%F%%G%%H%%I%%J%%K%%L%%M%%N%%O%%P%%Q%%R%%S%%T%%U%%V%%W%%X%%Y%%Z" if "%%Z" equ "" goto :break ) ) :break endlocal & endlocal & set "%~1=%str%" exit /b

以下是更正后的结果

Before: test1=!Hello`@#$%^&()_-+{[}]|\:;'<,>.?/"~*= World! After: test1=Hello World Before: test2= After: test2= Before: test3=`@#$%^&()_-+{[}]|\:;'<,>.?/"~*=! After: test3= Before: test4=,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,0,1,2,3,4,5,6,7,8,9, After: test4=ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 Before: test5=,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z!0,1,2,3,4,5,6,7,8,9! After: test5=ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789

如何批量删除所有符号？

3 个答案: