Strategy mode--learning headfirst design pattern record

Policy mode: defines the algorithm family, respectively encapsulated, so that they can replace each other, this pattern allows the algorithm to change independently of the customer using the algorithm.

The algorithm family is separated from the object, then the algorithm object is defined in the object, and then the object processing algorithm is delegated.

Single principle: package changes;

Multi-use combination, less inheritance;

Programming for the interface, not for the implementation of programming;

Strategy mode--learning headfirst design pattern record