for /f delims= %%i in ('dir /a/b *.exe ^| findstr /n /i .*') do (
SET topic[!n!]=%%i
CALL echo %%topic[!n!]%%
)
:end
SET /p %a%=Select Num:
:SymLoop
if defined topic[%x%] ( 
 set /a x+=1
 GOTO :SymLoop
)
SET /p %a%=Select Num:
SET fileName= !topic[a]!
@echo on
xelatex.exe -synctex=1 -interaction=nonstopmode %fileName%
xelatex.exe -synctex=1 -interaction=nonstopmode %fileName%
xelatex.exe -synctex=1 -interaction=nonstopmode %fileName%
nclick="copycode($('code0'));">復(fù)制代碼