python
is_quit = False
            while True:
                # 显示操作菜单
                admin.menu()
                # 获取用户的操作
                num = int(input('请输入您的操作:'))
                if num == 0:
                    print('彻底退出')
                    is_quit = True
                    break
                elif num == 1:
                    op.new_user()
                elif num == 2:
                    op.del_user()
                elif num == 3:
                    op.query_money()
                elif num == 4:
                    op.save_money()
                elif num == 5:
                    op.get_money()
                elif num == 6:
                    op.pass_money()
                elif num == 7:
                    op.change_pwd()
                elif num == 8:
                    op.lock_user()
                elif num == 9:
                    op.unlock_user()
                elif num == 10:
                    op.show_users()
                else:
                    print('操作有误，请重新输入')
            if is_quit:
                break
        else:
            print('登录失败')
            count += 1
            if count >= 3:
                print('错误已达上限，禁止登录')
                break