day13 人力资源管理系统初步实现 2018-08-01

# -*- coding: utf-8 -*-
"""
-------------------------------------------------
   File Name：     1
   Author :       LPP
   E-mail :       l.piaopiao@qq.com
   date：          2018/8/1
-------------------------------------------------
   Change Activity:
                   2018/8/1:
-------------------------------------------------
"""
"""
作业：
面向对象人力资源管理系统：  

- 能存多个员工信息   
 (每个员工的信息有：姓名、年龄、工号、薪资、职位、部门)
- 新员工入职（添加员工）
- 员工离职（删除员工）
- 查看某个员工的信息
- 查询薪资最高的员工
- 查询指定部门中所有员工的平均薪资
- 求整个公司的员工的平均年龄

"""


class Staff:
    def __init__(self, name, age, num='', salary=0, post='', department=''):
        self.name = name
        self.age = age
        self.num = num
        self.salary = salary
        self.post = post
        self.department = department

    def print_staff_info(self):  # (每个员工的信息有：姓名、年龄、工号、薪资、职位、部门)
        print('姓名: ', self.name)
        print('年龄: ', self.age)
        print('工号: ', self.num)
        print('薪资: ', self.salary)
        print('职位: ', self.post)
        print('部门: ', self.department)


class Company:
    __staff_No = 0  # 员工工号编号基数

    def __init__(self):
        self.name = ''
        self.staffs = []
        self.staff_num = 0  # 员工数量

    @classmethod
    def __get_No(cls):
        cls.__staff_No += 1
        num = 'py1805' + str(cls.__staff_No).rjust(4, '0')
        return num

    def new_staff(self):
        name = input('姓名:')
        age = int(input('年龄:'))
        num = Company.__get_No()
        salary = int(input('薪资:'))
        post = input('职位:')
        department = input('部门:')
        staff = Staff(name, age, num, salary, post, department)
        self.staffs.append(staff)
        self.staff_num += 1
        return staff

    def show_staff_info(self, flag):
        """1. 按姓名查看
            2. 按工号查看
        """
        if flag == 1:
            name = input('请输入需要查看信息的员工姓名:')
            names = []
            for staff in self.staffs:
                if staff.name == name:
                    names.append(staff)
            if not names:
                print('公司暂无此员工!!')
                return
            for staff in names:
                staff.print_staff_info()
                print('=====================================')
        else:
            num = input('请输入需要查看信息的员工工号:')
            for staff in self.staffs:
                count = 0
                if staff.num == num:
                    count += 1
                    staff.print_staff_info()
                    return True
                print('该工号有误,或没有对应的员工')
                return False

    def del_staff(self, staff_No):
        for staff in self.staffs:
            if staff.num == staff_No:
                self.staffs.remove(staff)
                self.staff_num -= 1
                return True
        print('没有找到该员工')
        return False

    def best_wages(self):
        """
        :return: (薪资最高者的姓名,薪资最高者)
        """
        the_highest = self.staffs[0]
        for staff in self.staffs:
            if staff.salary > the_highest.salary:
                the_highest = staff
        return the_highest.name, the_highest

    def specified_part_aver_salary(self, department):
        """
        :param department: 部门名称
        :return: 平均薪资
        """
        all_salary = []
        count = 0
        for staff in self.staffs:
            if staff.department == department:
                count += 1
                all_salary.append(staff.salary)
        if all_salary:
            return sum(all_salary)/count
        else:
            print('没有这个部门或者这个部门还没有人')

    def aver_age(self):
        all_age = 0
        for staff in self.staffs:
            all_age += staff.age
        if all_age:
            return all_age/self.staff_num


if __name__ == '__main__':
    company = Company()
    company.new_staff()
    company.show_staff_info()
    company.best_wages()
    company.del_staff()