请帮忙看看这个批处理代码是什么意思？

Question

if "%1A" == "A" goto Infoif %1 == SYSID goto SYSIDif %1 == sysid goto SYSIDif %1 == INSID goto INSIDif %1 == insid goto INSIDgoto Usage:Infoecho System: \\%COMPUTERNAME%, Node: local, m/c: %PROCESSOR_ARCHITECTURE%echo Operating system release:vergoto End:SYSIDecho System: \\%COMPUTERNAME%, Node: localecho Operating system release:vergoto End:INSIDecho Machine hardware name: %PROCESSOR_IDENTIFIER%goto End:Usageecho USAGE: %0, or %0 sysid, or %0 insidgoto End:End