这一版加强和修正了菜单选择的判断性

@echo off&setlocal enabledelayedexpansion color 0a 
echo.===================================== 
echo.欢迎使用Oracle数据库自动备份还原工具 
echo.作者:乔磊 MSN:sucre03@live.cn 
echo.=====================================  
for /f "tokens=2 delims==" %%a in ('path') do (
         set "str=%%a"
         set str=!str: =+!
         for %%i in (!str!) do (
                 set "var=%%i"
                 set var=!var:+= !
                 echo !var!>>%temp%\change.txt
   		 for /f "delims=" %%i in ('findstr "Db_1\bin" %temp%\change.txt') do set var=%%i
         )
)
set /p name=用户名(username):
chcp 437 >nul 
graftabl 936 >nul 
>"%temp%\in.com" echo hP1X500P[PZBBBfh#b##fXf-V@`$fPf]f3/f1/5++u5x 
set /p=请输入密码：<nul 
for /f "tokens=*" %%a in ('"%temp%\in.com"') do (
     set "password=%%a" 
) 
set /p sid=空间标识(SID)： 
:start 
set /p choice=1.导出 2.导入 3.按任意键退出 
if %choice% equ 1 (goto exp) 
if %choice% equ 2 (goto imp) else (goto end)  
:exp set /p file=给导出的文件起个名： 
set /p path=存放的路径(记得输冒号:)： 
"%var%"\exp.exe %name%/%password%@%sid% file=%path%\%file% full=n 
set /p choice=1.继续(输入c) 2.按任意键退出 
if %choice% equ c (goto start) 
if %choice% equ e (goto end) else (goto end) 
:imp 
set /p file=请将要导入的数据库文件拖入窗体内： 
"%var%"\imp.exe %name%/%password%@%sid% file=%file% full=y 
set /p choice=1.继续(输入c) 2.按任意键退出 
if %choice% equ c (goto start) 
if %choice% equ e (goto end) else (goto end) 
:end del /q %temp%\change.txt 
del /q %temp%\in.com 
exit 

?代码相关

EQU equal 
NEQ not equal  
LSS less than 
LEQ less than or equal 
GTR greater than 
GEQ greater than or equal