2019-01-25 02:52:40 +08:00
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"""
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面向对象的三大支柱：封装、继承、多态
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面向对象的设计原则：SOLID原则
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面向对象的设计模式：GoF设计模式（单例、工厂、代理、策略、迭代器）
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月薪结算系统 - 部门经理每月15000 程序员每小时200 销售员1800底薪加销售额5%提成
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"""
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from abc import ABCMeta, abstractmethod
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class Employee(metaclass=ABCMeta):
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"""员工(抽象类)"""
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def __init__(self, name):
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self.name = name
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@abstractmethod
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def get_salary(self):
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"""结算月薪(抽象方法)"""
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pass
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class Manager(Employee):
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"""部门经理"""
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def get_salary(self):
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return 15000.0
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class Programmer(Employee):
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"""程序员"""
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def __init__(self, name, working_hour=0):
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self.working_hour = working_hour
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super().__init__(name)
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def get_salary(self):
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return 200.0 * self.working_hour
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class Salesman(Employee):
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"""销售员"""
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def __init__(self, name, sales=0.0):
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self.sales = sales
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super().__init__(name)
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def get_salary(self):
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return 1800.0 + self.sales * 0.05
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class EmployeeFactory():
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"""创建员工的工厂（工厂模式 - 通过工厂实现对象使用者和对象之间的解耦合）"""
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@staticmethod
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def create(emp_type, *args, **kwargs):
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"""创建员工"""
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emp_type = emp_type.upper()
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emp = None
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if emp_type == 'M':
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emp = Manager(*args, **kwargs)
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elif emp_type == 'P':
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emp = Programmer(*args, **kwargs)
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elif emp_type == 'S':
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emp = Salesman(*args, **kwargs)
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return emp
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