学生管理系统登录部分

这个只是登录部分的代码

def welcome():print("="*40)       # 居中： "{:^{}}".format("*"*i,width)print("{:^{}}".format("** 欢迎来到学生管理系统 **", 35))print("{:^{}}".format("❤ 1，登      录", 35))print("{:^{}}".format("❤ 2，注      册", 35))print("{:^{}}".format("❤ 3，退      出", 35))print("="*40)while True:welcome()choice = input("请选择（1-3）：")# 选择登录操作if choice == "1":user_num = input("请输入你的账号：")user_password = input("请输入你的密码：")# 账号列表 {"ID": user_num} "D:\千峰\日常"try:Account_list = eval(open("D:\千峰\日常\Account_list.txt", encoding="utf-8").read())except FileNotFoundError:Account_list = []# 密码列表 {"ID": user_num, "password": user_password}try:password_list = eval(open("D:\千峰\日常\password_list.txt", encoding="utf-8").read())except FileNotFoundError:password_list = []user = {"ID": user_num}if user in Account_list:# 判断密码是否正确for x in password_list:if user_num == x["ID"]:if user_password == x["password"]:print("登录成功！")breakelse:print("密码错误登录失败！")breakelse:print("登录失败！账号不存在！")continue# 选择注册操作elif choice == "2":# 输入要注册的账号和密码user_num = input("请输入你的账号：")user_password = input("请输入你的密码：")# 账号列表 {"ID": user_num} "D:\千峰\日常"try:Account_list = eval(open("D:\千峰\日常\Account_list.txt", encoding="utf-8").read())except FileNotFoundError:Account_list = []# 判断账号是否已经存在for x in Account_list:if user_num == x["ID"]:print("注册失败！该账号已经存在。")breakelse:# 若账号不存在，将账号添加到账号列表中，并将账号列表写入文件，实现数据持久化Account_list.append({"ID": user_num})open("D:\千峰\日常\Account_list.txt", "w", encoding="utf-8").write(str(Account_list))# 密码列表 {"ID": user_num, "password": user_password} "D:\千峰\日常"try:password_list = eval(open("D:\千峰\日常\password_list.txt", encoding="utf-8").read())except FileNotFoundError:password_list = []password_list.append({"ID": user_num, "password": user_password})open("D:\千峰\日常\password_list.txt", "w", encoding="utf-8").write(str(password_list))print("注册成功！请返回登录。")continue# 选择退出操作elif choice == "3":print("期待你下次使用管理系统 :D")break# 如果输入错误elif choice not in ["1", "2", "3"]:print("输入错误！请重新选择。")