Review design pattern (i)------------Flyweight

A. All things are objects of the world

Stop a software engineering student from a college campus and ask him what an object-oriented. He will tell you that everything in the world is an object.

The world is bigger than everything. Up to the cosmic stars, down to the bacterial virus. are objects.

Girl, exhale like orchid, still leave faint lingering fragrance.

Boy, with closed eyes intoxicated, with delight.

Two. Object explosion

Between breathing, there are countless molecules.

Every molecule is an object, and the matrix of the terror server is also not available.

But what?

GOF Yue: Enjoy meta mode!

Three. What is the mode of entitlement

Flyweight: The most lightweight boxing player of all time. That is, the smallest grain size.

Therefore, the purpose of the pattern is to use the shared technology to solve the explosion problem of a large number of fine-grained objects.

Figure: