Shulou(Shulou.com)05/31 Report--

Today, the editor will share with you the relevant knowledge points about how to realize the builder pattern of C++ design pattern. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article, and let's take a look at it.

The biggest difference between the builder model and the factory model is that the builder model pays more attention to a series of processes of creation, such as pipelining operation, and the factory model emphasizes the distinction between different factories and products. The builder model pays more attention to unifying the processes of different products on the assembly line to achieve unified operation.

Action

The builder pattern is to separate a complex object from its construction and assembly process, so that different objects are created repeatedly using the same process. For the caller, you only need to know the type of product, not the specific assembly process.

Class view

Code implementation

Class Builder {public: virtual void SelectCpu () = 0; virtual void SelectMatherboard () = 0; virtual void SelectMem () = 0; virtual void SelectDisk () = 0; virtual void SelectPower () = 0; virtual void SelectShell () = 0;}; / / construct PC class PCBuilder: public Builder {public: void SelectCpu () {cout

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