/zhqsystem/zhq

:main
set pa=
set/p pa=
if not defined pa call:ping&&goto:a
for /f "usebackq delims=" %%i in ("%~f0")do (
if /i "%%i"==":%pa%" goto:%pa%
)
echo,无此跳转标签
goto:main
:a
echo,a
pause
:b
echo,b
pause
:c
echo,c
pause
:ping
ping /n 10 127.1 >nul 2>nul
goto:eof