"""
____author____ = '霍格沃兹测试开发学社'
____desc____ = '更多测试开发技术探讨，请访问：https://ceshiren.com/t/topic/15860'
"""
# 定义一个学生类
import os
class Student(object):
def __init__(self, sid, name, age, gender, addres, phone, mail, qq, wx):
self.sid = sid
self.name = name
# 重写对象的显示格式 方法
def __str__(self):
return f"SID: {self.sid} --- Name: {self.name}"
# 封装管理类
class SMS(object):
def __init__(self):
# 定义一个全局变量，用来保存学生的信息，方法各个函数之间进行访问
self.__students = []
# 加载数据
self.__load__data()
def __menu(self):
print("****************************************")
print("* 学生管理系统 *")
print("* 1. 添加新学生信息 *")
print("* 2. 通过学号修改学生信息 *")
print("* 3. 通过学号删除学生信息 *")
print("* 4. 通过姓名删除学生信息 *")
print("* 5. 通过学号查询学生信息 *")
print("* 6. 通过姓名查询学生信息 *")
print("* 7. 显示所有学生信息 *")
print("* 8. 退出系统 *")
print("****************************************")
# 管理函数
def start(self):
while True:
self.__menu()
select__op = input("输入编号选择操作：")
if len(select__op) == 1 and select__op in "12345678":
if select__op == "1":
sid = self.__getSid()
sname = self.__getSName()
self.__addStuedent(sid, sname)
elif select__op == "2":
sid = self.__getSid()
self.__modifyStudentByID(sid)
elif select__op == "3":
sid = self.__getSid()
self.__deleteStudentByID(sid)
elif select__op == "4":
sname = self.__getSName()
self.__deleteStudentByName(sname)
elif select__op == "5":
sid = self.__getSid()
self.__queryStudentByID(sid)
elif select__op == "6":
sname = self.__getSName()
self.__queryStudentByName(sname)
elif select__op == "7":
self.__show()
else:
self.__save__data()
break
else:
print("输入的数据不合法，请输入在合法范围内的操作编号！！！")
# 向文件中写入数据，进行持久化存储
def __save__data(self):
with open("db.txt", "w") as file:
for s in self.__students:
s__str = f"{s.sid}-{s.name}\n"
file.write(s__str)
# "s01-tom-23-male-beijing\n"
# "s01-tom-23-male-beijing\n"
# "s01-tom-23-male-beijing\n"
# "s01-tom-23-male-beijing\n"
# 从文件中读取数据，加载到内存
def __load__data(self):
if os.path.exists("db20231109.txt"):
with open("db.txt", "r") as file:
content = file.read().split()
for s in content:
s = s.split(", ")
stu = Student(*s)
self.__students.append(stu)
# 获取学生ID 的方法
def __getSid(self):
sid = input("请输入学生ID:")
return sid
# 获取学生姓名的方法
def __getSName(self):
sname = input("请输入学生姓名：")
return sname
# 添加学生
def __addStuedent(self, sid, name):
for s in self.__students:
if s.sid == sid:
print("学号已存在，添加失败")
return "添加失败"
else:
# 实例了一个学生对象
student = Student(sid, name)
self.__students.append(student)
print("添加学生信息成功")
return '添加成功'
# 通过学号修改学生信息
def __modifyStudentByID(self, sid):
for s in self.__students:
if s.sid == sid:
name = self.__getSName()
s.name = name # s["name"] = name
print("修改成功")
return "修改成功"
else:
print(f'没有 {sid} 对应的学生信息')
return "修改失败"
# 通过ID删除学生信息
def __deleteStudentByID(self, sid):
for s in self.__students:
if s.sid == sid:
self.__students.remove(s)
print("删除成功")
return "删除成功"
else:
print(f'没有 {sid} 对应的学生信息')
return "删除失败"
# 通过学生姓名 删除所有符合的学生
def __deleteStudentByName(self, name):
exist__s = []
# 找出所有要删除的学生
for s in self.__students:
if s.name.upper() == name.upper():
exist__s.append(s)
# 开始删除
if len(exist__s) > 0:
for s in exist__s:
self.__students.remove(s)
print(f"姓名为 { name } 的学生删除成功")
else:
print(f"成功删除 {len(exist__s)} 个学生")
return "删除成功"
else:
print(f"姓名为 【{name}】不存在，无法删除")
return "删除失败"
# 通过学号查询学生信息
def __queryStudentByID(self, sid):
for s in self.__students:
if s.sid == sid:
print(s)
return "查询成功"
else:
print(f"学号 {sid} 的学生不存在")
return "查询失败"
# 通过姓名查询学生信息
def __queryStudentByName(self, name):
result = []
for s in self.__students:
if s.name.lower() == name.lower():
result.append(s)
if len(result) > 0:
for s in result:
print(s)
return "查询成功"
else:
print("查询失败")
return "查询失败"
# 显示所有学生信息
def __show(self):
for s in self.__students:
print(s)
# 程序入口
if __name__ == '__main__':
# SMS().start()
sms = SMS()
sms.start()
# sms._SMS__addStuedent("s01","Tom")
# __show()
# _SMS__show()
# sms.__show()
# sms.____students.append("1")
# print(sms.____students)
"""
public 公有权限 self.name
protected 保护权限 self._proname
private 私有权限 self.__priname
s = Student()
s.name
int sum(int, int) -> sumii(a,b)
int sum(float, float) -> sumff(a,b)
sum(1,2)
sum(3.13,3.2)
"""
# class Studenet(object):
# def ____init____(self, sid, name,age,gender):
# self.sid = sid
#
# class SMS(object):
# def ____init____(self):
# self.students = []
#
# def addStudent(self,obj):
# self.students.append(obj)
# return "添加成功"
#
# def start(self):
# self.menu()
# select__op = input("请输入ID：")
# if len(select__op) == 1 and select__op in "12345":
# if select__op == "1":
# sid = input("输入ID")
# obj = Student(sid, "Tom","11","male")
# self.addStudent(obj)
# elif select__op == "2":
# print('修改')
# elif select__op == "3":
# print('查找')
# elif select__op == "4":
# print('删除')
# else:
# print("退出")
# else:
# print("输入ID不正确")
#
#
# def menu(self):
# print("菜单")
#
# if ____name____ == '____main____':
# SMS().start()
# 1. 先一遍理解代码
# 2. 抄一遍纯代码
# 3. 按照自己的理解给写代码写注释，逐行写
# 4. 复制文件 ，将新文件中的代码全删除，按照你自己写的注释，将代码再补全
# class Studenet(object):
# def ____init____(self, sid, name,age,gender):
# self.sid = sid
#
# if ____name____ == '____main____':
# SMS().start()