What is API_ application skills

API is the application programming interface, referred to as API (application programming Interface), is the software system different components of the agreement.

With the increasing scale of software, we need to divide the complex system into small parts, and the design of programming interface is very important. In the practice of program designing, the design of programming interface should make the responsibility of the system reasonably divided. Good interface design can reduce the interdependence of various parts of the system, improve the cohesion of constituent elements, and reduce the coupling between components, so as to improve the maintainability and expansibility of the system.