Python - 面向对象编程 - 实战（6）
需求
设计一个培训机构管理系统，有总部、分校，有学员、老师、员工，实现具体如下需求：
- 有多个课程，课程要有定价
- 有多个班级，班级跟课程有关联
- 有多个学生，学生报名班级，交这个班级对应的课程的费用
- 有多个老师，可以分布在不同校区，上不同班级的课
- 有多个员工，可以分布在不同校区，在总部可以统计各校区的账户余额、员工人数、学员人数
- 学生可以退学
类图
实现代码
这肯定不是最优代码， 如果有大佬给出更优解一定要给我评论哦
#!usr/bin/env python # -*- coding:utf-8 _*- """ # author: 小菠萝测试笔记 # blog: https://www.cnblogs.com/poloyy/ # time: 2021/9/7 11:18 下午 # file: 18_实战6.py """ # 课程类 class Course(object): def __init__(self, name, price): # 课程名、课程价格：私有属性 self.__name = name self.__price = price @property def name(self): return self.__name @name.setter def name(self, name): self.__name = name @property def price(self): return self.__price @price.setter def price(self, price): self.__price = price # 人类 class Person(object): def __init__(self, name, sex, phone): self.name = name self.sex = sex self.phone = phone def __str__(self): return f"姓名：{self.name}, 性别{self.sex}, 电话：{self.phone}" # 学生类 class Student(Person): def __init__(self, name, sex, phone, balance): super(Student, self).__init__(name, sex, phone) # 学生余额、报名的班级：私有属性 self.__balance = balance self.__class_list = [] @property def classList(self): return [class_.name for class_ in self.__class_list] # 报名班级 def addClass(self, class_): price = class_.price # 1、如果学生余额大于班级费用 if self.__balance > price: # 2、报名成功 self.__class_list.append(class_) # 3、减去报名费 self.__balance -= price # 4、班级的学生列表也需要添加当前学生 class_.addStudent(self) # 5、班级总额增加 class_.totalBalance() return print("余额不足，无法报名班级") # 退学 def removeClass(self, class_): if class_ in self.__class_list: # 1、报名班级列表移除 self.__class_list.remove(class_) # 2、班级学生列表移除当前学生 class_.removeStudent(self) print("班级不存在，无法退学") # 员工类 class Employ(Person): def __init__(self, name, sex, phone): super(Employ, self).__init__(name, sex, phone) # 工资：私有属性 self.money = 0 # 老师类 class Teacher(Employ): def __init__(self, name, sex, phone): super(Teacher, self).__init__(name, sex, phone) # 授课班级：私有属性 self.__class_list = [] @property def classList(self): return [class_.name for class_ in self.__class_list] # 授课 def teachClass(self, class_): # 1、授课列表添加班级 self.__class_list.append(class_) # 2、班级添加授课老师 class_.teacher = self # 班级类 class Class(object): def __init__(self, name): # 班级名、班级费用、课程列表、学生类表、班级老师、所属学校：私有属性 self.__name = name self.__price = 0 self.__course_list = [] self.__student_list = [] self.__teacher = None self.__balance = 0 self.__school = None @property def name(self): return self.__name @name.setter def name(self, name): self.__name = name @property def school(self): return self.__school.name @school.setter def school(self, school): self.__school = school @property def price(self): return self.__price @property def courseList(self): return self.__course_list def addCourse(self, course): # 1、班级费用累加课程费用 self.__price += course.price # 2、添加到课程列表 self.__course_list.append(course) @property def studentList(self): return [stu.name for stu in self.__student_list] def addStudent(self, student): self.__student_list.append(student) def removeStudent(self, student): self.__student_list.remove(student) @property def teacher(self): return self.__teacher @teacher.setter def teacher(self, teacher): self.__teacher = teacher @property def balance(self): return self.__balance # 统计班级一个班级收入 def totalBalance(self): self.__balance = len(self.__student_list) * self.__price # 学校类 class School(object): def __init__(self, name, balance): # 学校名、学校余额、学校员工列表：公共属性 self.name = name self.balance = balance self.employ_list = [] # 分校列表：私有属性 self.__school_list = [] def __str__(self): return f"学校：{self.name} 余额：{self.balance}" # 获取学校分校列表 @property def schoolList(self): return [school.name for school in self.__school_list] # 添加分校 def addBranchSchool(self, school): self.__school_list.append(school) # 添加员工 def addEmploy(self, employ): self.employ_list.append(employ) # 查看员工列表 def getEmploy(self): return [emp.name for emp in self.employ_list] # 统计各分校的账户余额 def getTotalBalance(self): res = {} sum = 0 for school in self.__school_list: # 1、结算一次分校余额 school.getTotalBalance() res[school.name] = school.balance # 2、累加分校余额 sum += school.balance res[self.name] = sum return res # 统计员工人数 def getTotalEmploy(self): sum_emp = 0 for school in self.__school_list: sum_emp += len(school.employ_list) sum_emp += len(self.employ_list) return sum_emp # 统计学生总人数 def getTotalStudent(self): sum_stu = 0 for school in self.__school_list: sum_stu += school.getTotalStudent() return sum_stu # 分校类 class BranchSchool(School): def __init__(self, name, balance): super(BranchSchool, self).__init__(name, balance) # 分校的班级列表：私有属性 self.__class_list = [] # 获取班级列表 @property def classList(self): return [class_.name for class_ in self.__class_list] # 添加班级 def addClass(self, class_): # 1、添加班级 self.__class_list.append(class_) # 2、添加老师员工 self.addEmploy(class_.teacher) # 获取总的余额 def getTotalBalance(self): for class_ in self.__class_list: # 1、结算班级收入 class_.totalBalance() # 2、累加班级收入 self.balance += class_.balance # 获取学生总人数 def getTotalStudent(self): sum_stu = 0 for class_ in self.__class_list: sum_stu += len(class_.studentList) return sum_stu # 总校 school = School("小菠萝总校", 100000) # 分校 bj1 = BranchSchool("小猿圈北京分校", 2222) sz1 = BranchSchool("深圳南山大学城分校", 5555) # 添加分校 school.addBranchSchool(bj1) school.addBranchSchool(sz1) # 初始化班级 class1 = Class("Python 基础班级") class2 = Class("Python 进阶班级") # 初始化课程 c1 = Course("Python 基础", 666) c2 = Course("Python 进阶", 1666) c3 = Course("Python 实战", 2666) # 添加课程 class1.addCourse(c1) class1.addCourse(c2) class2.addCourse(c2) class2.addCourse(c3) # 初始化老师 tea1 = Teacher("小菠萝老师", "girl", 1355001232) tea2 = Teacher("大菠萝老师", "boy", 1355001232) # 老师授课 tea1.teachClass(class1) tea2.teachClass(class2) bj1.addClass(class1) sz1.addClass(class2) # 初始化学生 stu1 = Student("小菠萝", "girl", 1355001232, 50000) stu2 = Student("大菠萝", "boy", 1355001231, 50000) stu3 = Student("大大菠萝", "girl", 1355001233, 10000) # 学生报名 stu1.addClass(class1) stu1.addClass(class2) stu2.addClass(class1) stu3.addClass(class2) # 普通员工 emp1 = Employ("小菠萝员工", "girl", 1355001232) emp2 = Employ("大菠萝员工", "boy", 1355001231) emp3 = Employ("小小菠萝员工", "girl", 1355001233) print(bj1.getTotalStudent()) print(school.getTotalBalance()) print(school.getTotalEmploy())
