钥匙,根据《汉语词典》里的解释有三种意义,本文会尝试从广义大众传媒的角度来就钥匙的这三种解释进行分析。从“实用能指”到“虚拟符号”的转变,从文化的符号文本到消费主义的符号文本,钥匙的虚实结合——媒介即信息的钥匙符号文本分析。 The key, according to the explanation in the Chinese Dictionary, has three meanings. This article attempts to analyze the three explanations of the key from the perspective of the mass media. The transformation from “practical means” to “virtual symbol”, from the cultural symbolic text to the consumerism symbolic text, the combination of the actual and the key of the key - the textual analysis of the key information symbol of the medium.