@echo off
:main
cls
echo.&echo.
echo 1.从C盘的S001复制文件到D盘的备份文档
echo 2.用E盘的S001覆盖C盘的S001
echo 3.退出
echo.&echo.
set /p option=请输入您的选择:
if not defined option goto main
if "%option%"=="1" goto 1
if "%option%"=="2" goto 2
if "%option%"=="3" exit
echo.&echo.
echo 请输入正确序号!&ping -n 2 127.1>nul&goto main
:1
xcopy c:\s00* d:\back /s /e /h
goto :3
:2
xcopy e:\s00* c: /s /e /h
goto :3
:3
exit