简单的一个python学生管理系统

from  datetime import datetime

#模拟的学生数据
data = [
    {
        'name': 'Tom',
        'sex': '男',
        'birthday': '20010214'
    },
    {
        'name': 'Jerry',
        'sex': '男',
        'birthday': '20000214'
    },
    {
        'name': 'Kitty',
        'sex': '女',
        'birthday': '20080214'
    },
    {
        'name': 'Kitty',
        'sex': '女',
        'birthday': '20070214'
    }
]

#学生类
class Student:
    #学生初始化
    def __init__(self,name, sex, birthday ):
        self.name      = name
        self.sex       = sex
        self.birthday  = birthday

    # 获取学生年龄
    def get_age(self):
        this_year = datetime.now().year
        age = this_year - int(self.birthday[:4])
        return age


#学生管理类
class StudentSystem:
    def __init__(self, name):
        self.name = name
        self.data = []

    #美化输出打印
    def beauty_print(self, data_list):
        for index, student in enumerate(data_list):
            print(f'序号：{index}', end='t')
            print(f'名字:{student.name:4}', end='t')
            print(f'性别:{student.sex:2}', end='t')
            print(f'年龄:{student.get_age()}')

    #加载数据
    def load_data(self):
        for item in data:
            student = Student(item['name'], item['sex'], item['birthday'])
            self.data.append(student)

    #启动学生管理系统
    def start(self):
        #系统启动加载数据
        self.load_data()
        while True:
            self.show_menu()
            op = input('选择操作： ')
            if op == '1':
                self.show_all_student()
            elif op == '2':
                self.create_student()
            elif op == '3':
                self.find_student()
            elif op ==  '4':
                self.modify_student()
            elif op == '5':
                self.remove_student()
            elif op == '0':
                 print('退出程序')
                 break
            else:
                print('请再次输入：')

    #规范姓名输入
    def input_name(self):
        while True:
            name = input('输入名字：').strip()
            if name :
                return name
            else:
                continue

    # 规范性别输入
    def choose_sex(self):
        sex = input('选择性别：（1.男| 2.女）').strip()
        if sex == '1':
            return '男'
        elif sex == '2':
            return '女'
        else:
            return '未知'

    #根据名字查找学生
    def find_student_by_name(self):
        name = self.input_name() # t
        find_list = [] # 找名字有 t
        for student in self.data: # 遍历data
            if name.lower() in student.name.lower():
                find_list.append(student)
        if find_list:
            return find_list
        else:
            print('没有找到')

    #显示菜单
    def show_menu(self):
        print(f'''
            欢迎使用{self.name}
            1.显示
            2.新建
            3.查询
            4.修改
            5.删除
            0.退出
             ''')

    #1. 显示学生信息
    def show_all_student(self):
       self.beauty_print(self.data)

    #2.新建学生信息
    def create_student(self):
        name = self.input_name()
        sex  = self.choose_sex()
        birthday = input('输入生日： ')
        student = Student(name, sex, birthday )
        self.data.append(student)

    #3.查询学生信息
    def find_student(self):
        find_list = self.find_student_by_name()

        self.beauty_print(find_list)


    #4.修改学生信息
    def modify_student(self):
        find_list = self.find_student_by_name()
        if find_list:
            self.beauty_print(find_list)
            index = int(input('选择修改的： '))
            student = find_list[index]
            print("当前修改的：")
            name = input('新名字：').strip()
            sex = self.choose_sex()
            birthday = input('修改生日:')
            if name:
                student.name = name
            student.sex = sex
            student.birthday = birthday


    #5.删除
    def remove_student(self):
        find_list = self.find_student_by_name()
        if find_list:
            self.beauty_print(find_list)
            index = int(input('选择删除的是：'))
            print('当前要删除的是：')
            student = find_list[index]
            self.beauty_print([student])
            self.data.remove(student)



if __name__ == '__main__':
    student_sys = StudentSystem('bili学生系统')
    student_sys.start()