戏剧符号学是一门萌芽于20世纪初并结合了结构语言学的学科。本文通过运用戏剧符号学理论对威尔逊剧作中的布景道具、人物名字、音乐和服装符号中所包含的历史隐喻进行解读,旨在剖析美国黑人的勇士精神——尽管遭受过奴隶制和种族歧视,他们仍勇敢乐观地与命运进行抗争,在白人占主导地位的社会中努力展现作为一个黑人的尊严和社会价值。 Semiotics is a discipline that began in the early 20th century and combines structural linguistics. By interpreting the historical metaphors contained in the playplays, characters, music and costume symbols of Wilson’s plays by using theatrical semiotics theory, the thesis attempts to analyze the heroism of Afro-American people despite their slavery and racial discrimination , They are still brave and optimistic in their fight against their own destiny and strive to show their dignity and social worth as blacks in a predominantly white society.