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Builder pattern
2020-11-08 15:22:00 【Irving the procedural ape】
Builder pattern application scenarios :
It is mainly used to build some complex objects , Here's a complex object like : When building buildings , We need to lay the foundation first , Building framework , And then cover it from bottom to top . Usually , In the construction of such complex structures , It's hard to do it all at once . We need to build parts of this object first , And then put them together in stages . So now there's the builder pattern : The builder pattern is made up of Builder( builder ) and Director( commander ) form . Please see the following UML chart :
Builder class
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