怎樣把BAT批量延遲影響的嘆號沒有了的字符串給還原回來

SET curPath=%CD%
SET aFolder=adlint
SET var1=/usr/include
SET var2=#include
SET var3=!curPath:=/!
SET var3=!var3!/copy/usr/include
SET var4=commoninterfaceinclude
......
IF EXIST !curPath!tmpchk.txt (
 FOR /F %%A IN ('FINDSTR .* !curPath!tmpchk.txt') DO (
ECHO %%A
FOR %%i IN (%%A) DO (
 CALL :SHOW %%i
 SET cPath=%%~dpi
)
COPY /Y %%A !curPath!copy>NUL
IF EXIST !curPath!tmp.c (DEL /F /S /Q !curPath!tmp.c>NUL)
FOR /F tokens=1* delims=: %%i IN ('FINDSTR /N .* %%A') DO (
 SET str1=%%j
 IF DEFINED str1 (
IF /I !str1:~0,8! EQU !var2! (
 CALL SET str2=%%str1:!!var1!!=%%
 IF NOT !str1! EQU !str2! (CALL SET str1=%%str1:!var1!=!var3!%%)
 ECHO;!str1!>>!curPath!tmp.c
) ELSE (ECHO;%%j>>!curPath!tmp.c)
 ) ELSE (ECHO.>>!curPath!tmp.c)
)
REN !curPath!tmp.c !cName!
MOVE /Y !curPath!!cName! !cPath!
 )
)
:SHOW
SET cName=%~nx1
nclick="copycode($('code0'));">復(fù)制代碼

上面這段話是一個(gè)比較完整的段落，批處理文件最開始有@ECHO OFFSETLOCAL ENABLEDELAYEDEXPANSION這兩句，因?yàn)樽兞垦舆t，中間的30行那句 ECHO;!str1!>>!curPath!tmp.c 變量str1里面有嘆號的時(shí)候嘆號全沒有了，哪位大俠指導(dǎo)一下？