传播媒介古已有之。岩画绳结、纸草书、泥版画、邸报告示、传奇笔记等都属于传播媒介的范畴。麦克卢汉所谓“媒介即信息”深刻地揭示了媒体介质的不同属性对其承载的信息的影响。他认为,传播介质的变更是社会发展的结果,更是社会变革的前提。~①在媒体介质变革的过程中,媒体所连接的双方——媒体和受众之间的信任关系也发生着明显变化。早期存在于部落、村落之间,建立在口口相传基础上的媒体信任随着纸质媒介的出现而没落。纸媒的可保存性和传递性使得信息传递范围超越了个体的目力所及、耳力所及。当信息单凭一 The media has always existed. Rock paintings knot, paper cursive, mud prints, Di report shows, legendary notes and so belongs to the category of the media. McLuhan’s so-called “media is information” profoundly reveals the influence of different media media attributes on the information it carries. He believes that the change of media is the result of social development and the prerequisite for social change. In the process of media media change, the two parties connected by the media - the trust relationship between the media and the audience also changed significantly. Earlier in the tribe and village, media trust based on word of mouth was declining with the advent of paper media. The preservability and transitivity of paper media make the transmission of information beyond the individual’s eyesight. When the information alone