Understanding object-oriented programming from the angle of movable printing

"Big Talk design mode" starts from the example of movable type to discuss the object-oriented benefits, personally feel very image. The movable printing technique mainly embodies the following points of object-oriented:

1. Can be maintained: Modify the words only need to modify a word;

2. Reusable: Other words can be reused;

3. Extensible: If you want to add words, only need to carve new words;

4. Good flexibility: horizontal vertical row can be.

Through encapsulation, inheritance, polymorphism to reduce the coupling of the program, the problem of traditional printing is that all the words are engraved on the same page caused by the coupling is too high, with the design mode is the program is more flexible, easy to modify, and easy to reuse.

Understanding object-oriented programming from the angle of movable printing