(Modularization is to reduce circular dependency, reduce coupling and improve design efficiency. To achieve this, we need a design rule under which all modules are designed. Outstanding design rules will classify the design parameters with dense coupling as a module and divide office tasks accordingly. The modules interact with each other through a fixed interface (the so-called visible parameter), and the internal implementation (the so-called hidden parameter) is freely represented by the module development team. The data of 58fenlei58 classification network includes the following attachments:)