一个简单的例子，在它里面用到一个Factory类. 假设规定名字的输入格式可以是：

fisrtname lastname

lastname,firstname

　　　　我们需要一个父类Namer，Namer中有字符串类型的成员: frName与lsName,有成员函数getFrname() 和getLsname()，通过继承Namer定义以上两种名字格式的子类：FirstFirst与LastFirst. Factory类提供一个函数，它根据输入的参数判断输入的名字是哪种格式，然后返回相应的类.

-A simple example, in its use inside a Class Factory. The assumption that the provisions of the name of the input format can be: fisrtname lastnamelastname, firstname We need a parent class Namer, Namer in strings types of members: frName with lsName, a member function getFrname () and getLsname (), through the succession of these two kinds of names Namer definition format subclass: FirstFirst with LastFirst. Factory class provides a function, which according to input the names of input parameters to determine which type of format, and then returned to the corresponding category .