设计模式中的建造者模式。在某些情况下，一个复杂对象会有一些重要的性质，在他们没有恰当的值前，对象不能作为一个完整的产品使用。在某些情况下，一个对象的一些性质必须按照某个顺序赋值才有意义。这些情况使得性质本身的建造涉及到复杂的商业逻辑。建造模式利用一个导演者对象和具体建造者对象一个一个的造出所有的零件，从而建造出完整的产品对象。建造者模式将产品的结构和产品的建造过程对客户端隐藏起来，把对建造过程进行指挥的责任和具体建造者零件的责任分割开来，达到责任划分和封装的目的-Builder design pattern model. In some cases, a complex object has some important properties, they do not have the appropriate value in the former,

Object can not be used as a complete product. In some cases, some properties of an object must be assigned only interested in a particular order

Meaning. These circumstances make it very nature involves the construction of complex business logic. Construction of models using a directed and specific builders who object to the

One by one as to make all the parts, thus the construction of a complete product object. Model Builder product structure and product of the construction process

Hidden on the client, the command of the responsibility of the construction process and the specific responsibilities of the construction of separate parts are to achieve the division of responsibilities and sealed

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