一下代码为何会运行2次？
call :LAN_Status 71.5.7.191
:LAN_Status
ping -n 1 %1 >nul 2>nul && set LanStatus=Online || set LanStatus=Offline
echo %LanStatus%
call :LAN_Status 71.5.7.191
:LAN_Status
ping -n 1 %1 >nul 2>nul && set LanStatus=Online || set LanStatus=Offline
echo %LanStatus%