| "Da Finch password" chapter text has a prominent feature is the multiple system code conversion, which reflects semiotic nature and the symbol combination of the basic law. The use of symbols and methods of "Da Finch code" of code switching phenomenon description interpretation, using the opposite complementary principles to explain language sign combination and aggregation between the system association. According to the textual code encoding and decoding process, can refer to the symbol and symbol for structural analysis and conversion of interpretation, can be text system between the conversion mechanisms are summarized into three types:(1) the same internal linguistic system conversion;(2) the conversion between different language systems;(3) the conversion between different symbol system. Symbolic conversion mode reveals the text symbol conversion rules, the basic motivation mainly includes:(1) chapter of semiotic arbitrariness and agreement;(2) chapter of the invariability and variability of language symbol;(3) the value of the chapter symbol. Discourse discourse has internal nature and value decided symbol conversion, at the same time" Da Finch password" chapter text in their own language features and multiple system, multiple areas of cross fusion, given the symbol signifier and signified of multilayer form meaning, this conversion model of in-depth study can help reveal code switching basic rule. |