给你一个测试代码,运行一下看看。
@echo off & setlocal
:loop
set /p answer=Do you want to continue (y/n)
echo You chose: %answer%
if /i {%answer%}=={y} goto :yes
if /i {%answer%}=={n} goto :no
echo Invalid selection, try again&&goto loop
:yes
ECHO ================ MENU ===============
ECHO -------------------------------------
ECHO 1. Selection 1
ECHO 2. Selection 2
ECHO 3. Selection 3
ECHO ==========PRESS '0' TO QUIT==========
ECHO.
set input=
set /p input=Please select a number:
if /i '%input%'=='1' goto job_1
if /i '%input%'=='2' goto job_2
if /i '%input%'=='3' goto job_3
if /i '%input%'=='0' goto end
echo wrong number, try it again&&goto :yes
:job_1
echo job_1
goto end
:job_2
echo job_2
goto end
:job_3
echo job_3
goto end
goto end
:no
:end
echo Good-bye!
endlocal & @echo on