Python 01-Month01.zip

""" 学生管理器系统 """ class StudentModel: """ 学生数据模型类 """ def __init__(self, name="", age=0, score=0, id=0): """ 创建学生对象 :param id: 编号 :param name: 姓名 :param age: 年龄 :param score: 成绩 """ self.id = id self.name = name self.age = age self.score = score @property def id(self): return self.__id @id.setter def id(self, value): self.__id = value @property def name(self): return self.__name @name.setter def name(self, value): self.__name = value @property def age(self): return self.__age @age.setter def age(self, value): self.__age = value @property def score(self): return self.__score @score.setter def score(self, value): self.__score = value class StudentManagerController: """ 学生逻辑控制器 """ def __init__(self): self.__list_stu = [] @property def list_stu(self): return self.__list_stu def add_student(self, stu): """ 添加新学生 :param stu: 需要添加的学生对象 """ stu.id = self.__generate_id() self.__list_stu.append(stu) def __generate_id(self): # 生成编号的需求:新编号,比上次添加的对象编号多1. # if len(self.__list_stu) > 0: # id = self.__list_stu[-1].id + 1 # else: # id = 1 # return id return self.__list_stu[-1].id + 1 if len(self.__list_stu) > 0 else 1 def order_by_score(self): """ 根据成绩升叙排列 :return: """ # 创建新列表(目的:不影响原有列表) new_list = self.__list_stu[:] for r in range(len(new_list) - 1): for c in range(r + 1, len(new_list)): if new_list[r].score > new_list[c].score: new_list[r], new_list[c] = new_list[c], new_list[r] return new_list def remove_student(self, id): """ 删除学生 :param id: :return: """ for stu in self.list_stu: if stu.id == id: self.list_stu.remove(stu) return True # 表示删除成功 return False # 表示删除失败 def update_student(self, stu): """ 更新学生信息 :return: """ for item in self.__list_stu: if item.id == stu.id: item.name = stu.name item.score = stu.score item.age = stu.age return True return False # controller = StudentManagerController() # controller.add_student(StudentModel("zs",18,85)) # controller.add_student(StudentModel("zs",18,85)) # for item in controller.list_stu: # print(item.id,item.name,item.age,item.score) class StudentManagerView: """ 界面视图类 """ def __init__(self): # 创建逻辑控制器对象 self.__manager = StudentManagerController() def __input_students(self): # 1. 在控制台中录入学生信息,存成学生对象StudentModel. stu = StudentModel() stu.name = input("请输入姓名:") stu.age = int(input("请输入年龄:")) stu.score = int(input("请输入成绩:")) # 2. 调用逻辑控制器的add_student方法 self.__manager.add_student(stu) print(self.__manager) def __output_students(self, list_target): """ 显示学生列表信息 :return: """ # for stu in self.__manager.list_stu: for stu in list_target: print("%d -- %s -- %d -- %d" % (stu.id, stu.name, stu.age, stu.score)) def __output_student_by_score(self): """ 根据成绩显示所有学生信息 :return: """ list_target = self.__manager.order_by_score() self.__output_students(list_target) def __delete_student(self): id = int(input("请输入需要删除的学生编号:")) if self.__manager.remove_student(id): print("删除成功") else: print("删除失败") def __modify_student(self): """ 修改学生信息 :return: """ stu = StudentModel() stu.id = int(input("请输入需要修改的学生编号:")) stu.name = input("请输入姓名:") stu.age = int(input("请输入年龄:")) stu.score = int(input("请输入成绩:")) if self.__manager.update_student(stu): print("修改成功") else: print("更新失败") def __display_menu(self): """ 显示菜单 :return: """ print("1) 添加学生") print("2) 显示学生") print("3) 删除学生") print("4) 修改学生") print("5) 按照成绩降序排列") def __select_menu(self): """ 选择菜单 :return: """ number = input("请输入选项:") if number == "1": self.__input_students() elif number == "2": self.__output_students(self.__manager.list_stu) elif number == "3": self.__delete_student() elif number == "4": self.__modify_student() elif number == "5": self.__output_student_by_score() def main(self): """ 界面入口方法 :return: """ while True: self.__display_menu() self.__select_menu() view = StudentManagerView() view.main()