通过语言手段 （言内行为），公示语通过不同的施为动词，如警示、诱导、指

Through linguistic means (intralingual behavior), public signs act as verbs such as warning, inducement, instruction, persuasion, etc., which play a role in communication between people and society, and thus prompt people to take corresponding extraverbal behaviors, thus Achieve the purpose of post-speech

Through the means of language (in-word behavior), publicity through different verbs, such as warning, induction, instruction, persuasion and so on in the human and social communication role, and thus prompt people to take the corresponding act of words and outofing, in order to achieve the purpose of the act after the speech

By means of linguistic means (intralingual behavior), public signs play an important role in communication between people and society through different action verbs, such as warning, induction, instruction, persuasion, etc., and thus urge people to take corresponding extralingual behavior, so as to achieve the purpose of post speech behavior