Attribute Macro option 

#[option]

Define option of command or public.

Format

it’s similar with command. The only difference between them is the length of arguments.

#[command(sub_cmd <rs>|[os]|<rm...>|[om...] , desc)], explain:

• sub_name: the name of sub-command you defined, it should be same as the name of command processing function
• <rs>|[os]|<rm...>|[om...]: only one. Only four types of arguments: ,[OptionalSingle],,[OptionalMultiple]
• desc: description of this sub-command, it’s using for display help information.

Note

all #[option] should be placed before #[command]