_init_.py 主体入口
from student_manager_system1.dl_t import * # 控制登录注册封包
from student_manager_system1.gl_s import * # 管理学生功能封包
if __name__ == '__main__':
while True:
print("="*100)
print('学生管理系统-教师端'.center(100,' '))
print('\n\n1.登录\n\n2.注册\n\n3.退出'.center(100,' '))
print("="*100)
order = input('输入命令：')
if order == '1':
user = input('username:')
pwd = input('password:')
if login(user,pwd):
print('login success')
while True:
print('=' * 100)
title_sys = '学生信息管理系统'
title_fun1 = '1 添加学生'
title_fun2 = '2 查看学生'
title_fun3 = '3 删除学生'
title_fun4 = '4 立即退出'
print(title_sys.center(100), end='\n\n')
print(title_fun1.center(100))
print(title_fun2.center(100))
print(title_fun3.center(100))
print(title_fun4.center(100))
print('=' * 100)
order = input('请输入您的命令：')
if order == '1':
while True:
name = input('输入学生姓名：')
age = input('输入学生年龄：')
sid = input('输入学生学号：')
stu_add(name, age, sid, user)
add_ok = input('是否继续添加y/n：')
if add_ok == 'n':
break
elif order == '2':
all_info(user)
elif order == '3':
while True:
del_name = input('请输入学生学号：')
del_stu(del_name,user)
del_ok = input('是否继续删除y/n：')
if del_ok == 'n':
break
pass
else:
break
else:
continue
elif order == '2':
print('please input your infomation:')
user = input('username:')
pwd = input('password:')
while True:
p_c = input('put password again:')
if p_c != pwd:
print('input again error!')
continue
else:
break
regist(user,pwd)
continue
elif order == '3':
break
else:
continue
dl_t.py
import json
def login(user,pwd):
with open('./s_m_files/teacher.json','r',encoding='utf-8') as teacher:
context = json.load(teacher)
if {user:pwd} not in context:
print('please check your username or password!we will return')
return False
else:
print('login in >>>>')
return True
def regist(user,pwd):
with open('./s_m_files/teacher.json','r',encoding='utf-8') as teacher:
context = json.load(teacher)
context.append({user:pwd})
with open('./s_m_files/teacher.json','w',encoding='utf-8') as teacher:
json.dump(context,teacher)
print('registed success')
return True
gl_s.py
import json
def stu_add(name,age,sid,teacher):
student_info = {'name': None, 'sid': None, 'age': None}
student_info['name'] = name
student_info['age'] = age
student_info['sid'] = sid
try:
with open('./s_m_files/'+teacher+'.json', 'r', encoding='utf-8') as add_s:
students = json.load(add_s)
except FileNotFoundError:
students = []
with open('./s_m_files/'+teacher+'.json','w', encoding='utf-8') as add_s:
students.append(student_info)
json.dump(students,add_s)
print('添加成功')
def all_info(teacher): # 所有学生信息查询
try:
with open('./s_m_files/'+teacher+'.json', 'r', encoding='utf-8') as a_info_s:
students = json.load(a_info_s)
if len(students) == 0:
print('没有学生！')
else:
for x in students:
for y in x:
print(y + ':' + x[y], end=' ')
print()
except FileNotFoundError:
print('没有学生！')
def del_stu(del_name,teacher): # 学生信息删除
try:
with open('./s_m_files/'+teacher+'.json', 'r', encoding='utf-8') as d_s:
students = json.load(d_s)
if len(students) == 0:
print('没有学生！')
elif del_name not in [x['sid'] for x in students]:
print('没有该学生')
else:
for x in students[:]:
if x['sid'] == del_name:
students.remove(x) # 获取字典在列表中的位置，使用remove删除
with open('./s_m_files/' + teacher + '.json', 'w', encoding='utf-8') as d_s:
json.dump(students,d_s)
print('删除成功')
except FileNotFoundError:
print('没有学生！')
实现了教师登录，注册功能，实现添加学生，删除学生，查看所有学生功能，因为修改信息和单个查找的实现类似于添加学生和删除学生，这就没写，主要思想就是登陆方用字典存储{user : pwd}，学生用字典外套列表实现存储[{name : xxx , sid : xxxxx, age : xx}]，同时为每个登录名分配一个学生列表的json数据文件，当然可以使用一个文件搞定，但是数据显得臃肿庞大，举一个文件的思路最外层使用列表形式[]，里面以字典为元素，而这个元素里面存放3个键值对分别是登录者的登录号，密码，和他管理的学生，其中学生项的值用字典外套列表表示。大概样子是[{user:xx , pwd:xxxx , students:[{},{},{}]}]，有兴趣的可以一试，就是遍历的弯弯有点多，需要耐心排错。
原谅我不写注释，但是我基本把功能分明了，每一个函数拆开都能看，应该比较好理解。
文件结构:
image.png
效果图
C:\Users\FL5600\PycharmProjects\venv\Scripts\python.exe C:/Users/FL5600/PycharmProjects/student_manager_system1/__init__.py
====================================================================================================
学生管理系统-教师端
1.登录
2.注册
3.退出
====================================================================================================
输入命令：2
please input your infomation:
username:ssss
password:12345678
put password again:1234567
input again error!
put password again:12345678
registed success
====================================================================================================
学生管理系统-教师端
1.登录
2.注册
3.退出
====================================================================================================
输入命令：1
username:ssss
password:12345678
login in >>>>
login success
====================================================================================================
学生信息管理系统
1 添加学生
2 查看学生
3 删除学生
4 立即退出
====================================================================================================
请输入您的命令：1
输入学生姓名：jack
输入学生年龄：23
输入学生学号：2018001
添加成功
是否继续添加y/n：y
输入学生姓名：tony
输入学生年龄：24
输入学生学号：2018002
添加成功
是否继续添加y/n：n
====================================================================================================
学生信息管理系统
1 添加学生
2 查看学生
3 删除学生
4 立即退出
====================================================================================================
请输入您的命令：2
name:jack sid:2018001 age:23
name:tony sid:2018002 age:24
====================================================================================================
学生信息管理系统
1 添加学生
2 查看学生
3 删除学生
4 立即退出
====================================================================================================
请输入您的命令：3
请输入学生学号：2018005
没有该学生
是否继续删除y/n：y
请输入学生学号：2018001
删除成功
是否继续删除y/n：n
====================================================================================================
学生信息管理系统
1 添加学生
2 查看学生
3 删除学生
4 立即退出
====================================================================================================
请输入您的命令：2
name:tony sid:2018002 age:24
====================================================================================================
学生信息管理系统
1 添加学生
2 查看学生
3 删除学生
4 立即退出
====================================================================================================
请输入您的命令：4
====================================================================================================
学生管理系统-教师端
1.登录
2.注册
3.退出
====================================================================================================
输入命令：1
username:ghjk
password:235678
please check your username or password!we will return
====================================================================================================
学生管理系统-教师端
1.登录
2.注册
3.退出
====================================================================================================
输入命令：3
Process finished with exit code 0
更新相关：
- 学号自动生成，在s_m_files中创建一个studnt_count.txt文件存储学生数量，不管哪个老师添加学生都要在生成学号前先读取studnt_count.txt中的数量，在添加学生后，数量+1再写入，关键代码如下：
file_manager.py
import json
def txtfile_read(filename):
while True:
try:
with open(filename,'r',encoding='utf-8') as txtfile:
content = txtfile.read()
print('读取成功')
return content
break
except FileNotFoundError:
order = input('文件未找到，是否创建？y/n：')
if order == 'y':
f = open(filename,'w',encoding='utf-8')
f.close()
order1 = input('是否写入内容？y/n：')
if order1 == 'y':
new = input('输入写入内容：')
with open(filename,'w',encoding='utf-8') as txtfile:
txtfile.write(new)
print('写入成功！')
else:
filename = input('请重新输入路径：')
def txtfile_write(filename,title):
with open(filename,'w',encoding='utf-8') as txtfile:
txtfile.write(str(title))
print('写入成功')
gl_s中的添加学生的方法
from student_manager_system1.file_manager import txtfile_read,txtfile_write
def stu_add(name,age,teacher):
student_info = {'name': None, 'sid': None, 'age': None}
student_info['name'] = name
student_info['age'] = age
student_count = int(txtfile_read('./s_m_files/student_count.txt')) # 读取已经存在的所有学生数量
student_counts = student_count + 1 # 添加一个学生就+1(因为生成学号，就是删除学生该值也不会变小)
student_info['sid'] = '2018'+str(student_counts).rjust(4,'0') # 自动生成
txtfile_write('./s_m_files/student_count.txt',student_counts) # 覆盖写入
try:
with open('./s_m_files/'+teacher+'.json', 'r', encoding='utf-8') as add_s:
students = json.load(add_s)
except FileNotFoundError:
students = []
with open('./s_m_files/'+teacher+'.json','w', encoding='utf-8') as add_s:
students.append(student_info)
json.dump(students,add_s)
print('添加成功')
- 注册名重复判断：主要思想是
context = json.load(teacher)
{user:pwd}.keys() in [x.keys() for x in context]
判断输入的键是否存在于已经保存各登录名的键中
dl_t.py
def regist(user,pwd):
with open('./s_m_files/teacher.json','r',encoding='utf-8') as teacher:
context = json.load(teacher)
if {user:pwd}.keys() in [x.keys() for x in context]:
print('this username is exited!')
return False
else:
context.append({user:pwd})
with open('./s_m_files/teacher.json','w',encoding='utf-8') as teacher:
json.dump(context,teacher)
print('registed success')
return True
打包exe操作（带清屏功能）：
image.png
image.png
image.png