employee.py

"""
抽象类 / 方法重写 / 多态
实现一个工资结算系统 公司有三种类型的员工
- 部门经理固定月薪12000元/月
- 程序员按本月工作小时数每小时100元
- 销售员1500元/月的底薪加上本月销售额5%的提成
输入员工的信息 输出每位员工的月薪信息

Version: 0.1
Author: 骆昊
Date: 2018-03-12
"""

from abc import ABCMeta, abstractmethod


class Employee(object, metaclass=ABCMeta):

    def __init__(self, name):
        self._name = name

    @property
    def name(self):
        return self._name

    @abstractmethod
    def get_salary(self):
        pass


class Manager(Employee):

    # 想一想: 如果不定义构造方法会怎么样
    def __init__(self, name):
        # 想一想: 如果不调用父类构造器会怎么样
        super().__init__(name)

    def get_salary(self):
        return 12000


class Programmer(Employee):

    def __init__(self, name):
        super().__init__(name)

    def set_working_hour(self, working_hour):
        self._working_hour = working_hour

    def get_salary(self):
        return 100 * self._working_hour


class Salesman(Employee):

    def __init__(self, name):
        super().__init__(name)

    def set_sales(self, sales):
        self._sales = sales

    def get_salary(self):
        return 1500 + self._sales * 0.05


if __name__ == '__main__':
    emps = [Manager('武则天'), Programmer('狄仁杰'), Salesman('白元芳')]
    for emp in emps:
        if isinstance(emp, Programmer):
            working_hour = int(input('请输入%s本月工作时间: ' % emp.name))
            emp.set_working_hour(working_hour)
        elif isinstance(emp, Salesman):
            sales = float(input('请输入%s本月销售额: ' % emp.name))
            emp.set_sales(sales)
        print('%s本月月薪为: ￥%.2f元' % (emp.name, emp.get_salary()))