day10-homework

基于json保存数据的简单学生管理系统

• 需要用到json文件和python格式编码转换的看这
• 控制台终端Terminal密码隐藏输入(不是直接run xx.py)
• 在线json格式校验
• codes

"""
__author__ = 'rz'
__Time__ = 2018/8/31 0031 下午 8:05
"""

import json
import getpass #用于控制台input输入密码隐藏化

def menu():
    """
    主功能界面
    :return: 
    """
    print("*"*53)
    print('*' + ' '*51 + '*')
    print('*' + 'Student Manager System'.center(51,' ') + '*')
    print('*' + '1.Log in'.center(51,' ') + '*')
    print('*' + '2.Register'.center(51,' ') + '*')
    print('*' + '0.Exit '.center(51,' ') + '*')
    print('*' + ' ' * 51 + '*')
    print("*" * 53)
    while True:
        option = input('输入选项:')
        if option == '1':
            login()
        elif option == '2':
            register()
        elif option == '0':
            exit()
        elif option == '':
            continue
        else:
            print('输入有误，请重新选择功能项!')

def login():
    """
    用户登录
    :return: 
    """
    print('*' + 'starting login'.center(50, ' ') + '*')
    f1 = open('./rmyfile/system_info.json', 'r', encoding='utf-8')
    res = f1.read()
    f1.close()
    sys_info_list = json.loads(res)  # 将文本中的json格式转换成python中格式，此处为list
    while True:
        t_id = input('输入id:')
        t_pwd = getpass.getpass('输入密码:')
        for n in range(len(sys_info_list)):
            if sys_info_list[n]['id'] == t_id and sys_info_list[n]['pwd'] == t_pwd:
                submenu(sys_info_list[n])  ##将该用户的字典信息返回
        else:
            print('没有该用户或用户密码不匹配，请重新登录')



def register():
    """
    用户注册
    :return: 
    """
    print('*' + 'starting register'.center(50, ' ') + '*')
    f1 = open('./rmyfile/system_info.json', 'r', encoding='utf-8')
    res = f1.read()
    f1.close()
    sys_info_list = json.loads(res)  # 将文本中的json格式转换成python中格式，此处为list
    while True:
        t_id = input('输入用户id:')
        for n in range(len(sys_info_list)):
            if t_id == sys_info_list[n]['id']:
                print('该用户id已存在.')
                break
            elif t_id == '':
                print('用户id不能为空.')
                break
        else:
            break
    t_user = input('输入用户名:')
    while True:
        t_pwd = getpass.getpass('输入密码:')
        t_pwd2 = getpass.getpass('确认密码:')
        if t_pwd != t_pwd2:
            print('密码不一致')
        else:
            break

    new_info_dict = {}
    new_info_dict['id'] = t_id
    new_info_dict['user'] = t_user
    new_info_dict['pwd'] = t_pwd
    new_info_dict['students'] = []
    sys_info_list.append(new_info_dict)
    sys_info_json = json.dumps(sys_info_list)  #将添加完信息的列表转换成json格式
    f2 =open('./rmyfile/system_info.json','w',encoding='utf-8')
    f2.write(sys_info_json)
    print('用户:%s' % t_id + '注册成功')
    f2.close()

    print('选项：继续注册1/返回上一级0')
    while True:
        option = input('请输入选项:')
        if option == '1':
            register()
        elif option == '0':
            menu()
        elif option == '':
            continue
        else:
            print('输入有误，请重新选择.')


def submenu(teacher_dict:dict):
    """
    子功能界面-用户登录后
    :param teacher_dict: 
    :return: 
    """
    print("*" * 53)
    print('*' + ('Welcome to you - %s'%teacher_dict['user']).center(50, ' ')  + '*')
    print('*' + '1.Add student'.center(50, ' ') + '*')
    print('*' + '2.Edit student'.center(50, ' ') + '*')
    print('*' + '3.Query student'.center(50, ' ') + '*')
    print('*' + '4.Delete student'.center(50, ' ') + '*')
    print('*' + '5.Return menu'.center(50, ' ') + '*')
    print('*' + '0.Exit'.center(50, ' ') + '*')
    print("*" * 53)
    while True:
        option = input('输入选项:')
        if option == '1':
            add_student(teacher_dict)
        elif option == '2':
            edit_student(teacher_dict)
        elif option == '3':
            query_student(teacher_dict)
        elif option == '4':
            delete_student(teacher_dict)
        elif option == '5':
            menu()
        elif option == '0':
            exit()
        elif option == '':
            continue
        else:
            print('输入有误，请重新选择功能项!')

def add_student(teacher_dict:dict):
    print('*' + 'Adding student'.center(50, ' ') + '*')
    f1 = open('./rmyfile/system_info.json', 'r', encoding='utf-8')
    res = f1.read()
    f1.close()
    sys_info_list = json.loads(res)  # 将文本中的json格式转换成python中格式，此处为list
    stu_name = input('输入学生姓名:')
    while True:
        stu_id = input('输入学生学号:')
        if stu_id == '':
            continue
        for n in range(len(teacher_dict['students'])): #学号一定不能相同
            if stu_id == teacher_dict['students'][n]['stuid']:
                print('学号已被占用,请重置.')
                break
        else: #注意若是上面的break结束循环,是不会执行else的
            break

    age = input('输入年龄:')
    phone = input('输入电话号码:')
    student_dcit = {'stuname':stu_name,'stuid':stu_id,'age':age,'phone':phone} #生成的新学生字典
    t_index = sys_info_list.index(teacher_dict) #教师字典信息在系统信息列表的索引
    sys_info_list[t_index]['students'].append(student_dcit) #添加新学生到系统信息列表
    sys_info_json = json.dumps(sys_info_list)
    f2 = open('./rmyfile/system_info.json', 'w', encoding='utf-8')
    f2.write(sys_info_json)
    f2.close()
    print('添加学生( %s )成功.\n' % stu_name)
    print('选项：继续添加1/返回上一级0')
    while True:
        option = input('请输入选项:')
        if option == '1':
            add_student(sys_info_list[t_index])
        elif option == '0':
            submenu(sys_info_list[t_index])
        elif option == '':
            continue
        else:
            print('输入有误，请重新选择.\n')
def edit_student(teacher_dict:dict):
    print('*' + 'Editing student'.center(50, ' ') + '*')
    print('你的所有学生信息如下:')
    for n in range(len(teacher_dict['students'])): #打印全部学生
        print(teacher_dict['students'][n])

    f1 = open('./rmyfile/system_info.json', 'r', encoding='utf-8')
    res = f1.read()
    f1.close()
    sys_info_list = json.loads(res)  # 将文本中的json格式转换成python中格式，此处为list
    t_index = sys_info_list.index(teacher_dict)  # 教师字典信息在系统信息列表的索引
    while True:
        edit_id = input('输入需要修改的学生id:')  # 先不做输入得不到学生id的情形
        mark = 0
        if edit_id == '':
            continue
        for n in range(len(teacher_dict['students'])):
            if teacher_dict['students'][n]['stuid'] == edit_id: #找到匹配的学生
                edit_name = input('修改名字:')
                edit_age = input('修改年龄:')
                edit_phone = input('修改电话号码:')
                teacher_dict['students'][n]['stuname'] = edit_name
                teacher_dict['students'][n]['age'] = edit_age
                teacher_dict['students'][n]['phone'] = edit_phone
                sys_info_list[t_index]['students'][n] = teacher_dict['students'][n].copy() #修改对应的学生的字典
                mark = 1
                sys_info_json = json.dumps(sys_info_list)
                f2 = open('./rmyfile/system_info.json', 'w', encoding='utf-8')
                f2.write(sys_info_json)
                f2.close()
                print('修改学生信息成功.\n')
                break
        if not mark:
            print('欲修改的学生不存在( %s ).\n' % edit_id)
        break
    print('选项：继续修改1/返回上一级0')
    while True:
        option = input('请输入选项:')
        if option == '1':
            edit_student(sys_info_list[t_index])
        elif option == '0':
            submenu(sys_info_list[t_index])
        elif option == '':
            continue
        else:
            print('输入有误，请重新选择.')

def delete_student(teacher_dict:dict):
    print('*' + 'Deleting student'.center(50, ' ') + '*')
    print('你的所有学生信息如下:')
    for n in range(len(teacher_dict['students'])):  # 打印全部学生
        print(teacher_dict['students'][n])
    f1 = open('./rmyfile/system_info.json', 'r', encoding='utf-8')
    res = f1.read()
    f1.close()
    sys_info_list = json.loads(res)  # 将文本中的json格式转换成python中格式，此处为list
    t_index = sys_info_list.index(teacher_dict)  # 教师字典信息在系统信息列表的索引
    while True:
        del_id = input('输入需要删除的学生id:')  # 先不做输入得不到学生id的情形
        mark = 0
        if del_id == '':
            continue
        for n in range(len(teacher_dict['students'])):
            if teacher_dict['students'][n]['stuid'] == del_id:  # 找到匹配的学生id
                sys_info_list[t_index]['students'].pop(n)  #删除对应学生的字典
                sys_info_json = json.dumps(sys_info_list)
                f2 = open('./rmyfile/system_info.json', 'w', encoding='utf-8')
                f2.write(sys_info_json)
                f2.close()
                print('删除学生( %s )成功.\n' % del_id)
                mark = 1
                break
        if not mark: #若没有这名学生给提示信息
            print('没有id( %s )的学生\n' % del_id)
        break
    print('选项：继续删除1/返回上一级0')
    while True:
        option = input('请输入选项:')
        if option == '1':
            delete_student(sys_info_list[t_index])
        elif option == '0':
            submenu(sys_info_list[t_index])
        elif option == '':
            continue
        else:
            print('输入有误，请重新选择.')


def query_student(teacher_dict:dict):
    print('*' + 'Querying student'.center(51, ' ') + '*')
    print('*' + ' ' * 51 + '*')
    print('*' + '1.Query by student name'.center(51, ' ') + '*')
    print('*' + '2.Query by student id'.center(51, ' ') + '*')
    print('*' + '3.Query by age'.center(51, ' ') + '*')
    while True:
        option = input('请输入选项:')
        if option == '1':
            query_student_name(teacher_dict)
        elif option == '2':
            query_student_id(teacher_dict)
        elif option == '':
            continue
        else:
            print('输入有误，请重新选择.')

def query_student_name(teacher_dict:dict):
    print('*' + 'Querying by name'.center(51, ' ') + '*')
    query_name = input('输入需要查询的学生姓名:')
    count = 0
    for n in range(len(teacher_dict['students'])):
        if query_name in teacher_dict['students'][n]['stuname']:
            count += 1
            print(teacher_dict['students'][n])
    print('总共为您找到%d条记录\n' % count)
    print('选项：继续查询1/返回上一级0')
    while True:
        option = input('请输入选项:')
        if option == '1':
            query_student(teacher_dict)
        elif option == '0':
            submenu(teacher_dict)
        elif option == '':
            continue
        else:
            print('输入有误，请重新选择.')


def query_student_id(teacher_dict:dict):
    print('*' + 'Querying by id'.center(51, ' ') + '*')
    query_id = input('输入需要查询的学生学号:')
    count = 0
    for n in range(len(teacher_dict['students'])):
        if query_id == teacher_dict['students'][n]['stuid']:
            count += 1
            print(teacher_dict['students'][n])
    print('总共为您找到%d条记录\n' % count)
    print('选项：继续查询1/返回上一级0')
    while True:
        option = input('请输入选项:')
        if option == '1':
            query_student(teacher_dict)
        elif option == '0':
            submenu(teacher_dict)
        else:
            print('输入有误，请重新选择.')

if __name__ == '__main__':
    menu()

注:对部分信息的输入没有进行判断