_init_.py 主體入口

from student_manager_system1.dl_t import * # 控制登錄注冊封包
from student_manager_system1.gl_s import * # 管理學(xué)生功能封包

if __name__ == '__main__':
    while True:
        print("="*100)
        print('學(xué)生管理系統(tǒng)-教師端'.center(100,' '))
        print('\n\n1.登錄\n\n2.注冊\n\n3.退出'.center(100,' '))
        print("="*100)
        order = input('輸入命令：')
        if order == '1':
            user = input('username:')
            pwd = input('password:')
            if login(user,pwd):
                print('login success')
                while True:
                    print('=' * 100)
                    title_sys = '學(xué)生信息管理系統(tǒng)'
                    title_fun1 = '1       添加學(xué)生'
                    title_fun2 = '2       查看學(xué)生'
                    title_fun3 = '3       刪除學(xué)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('請輸入您的命令：')
                    if order == '1':
                        while True:
                            name = input('輸入學(xué)生姓名：')
                            age = input('輸入學(xué)生年齡：')
                            sid = input('輸入學(xué)生學(xué)號：')
                            stu_add(name, age, sid, user)
                            add_ok = input('是否繼續(xù)添加y/n：')
                            if add_ok == 'n':
                                break
                    elif order == '2':
                        all_info(user)
                    elif order == '3':
                        while True:
                            del_name = input('請輸入學(xué)生學(xué)號：')
                            del_stu(del_name,user)
                            del_ok = input('是否繼續(xù)刪除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): # 所有學(xué)生信息查詢
    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('沒有學(xué)生！')
        else:
            for x in students:
                for y in x:
                    print(y + ':' + x[y], end=' ')
                print()
    except FileNotFoundError:
        print('沒有學(xué)生！')

def del_stu(del_name,teacher): # 學(xué)生信息刪除
    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('沒有學(xué)生！')
        elif del_name not in [x['sid'] for x in students]:
            print('沒有該學(xué)生')
        else:
            for x in students[:]:
                if x['sid'] == del_name:
                    students.remove(x)  # 獲取字典在列表中的位置，使用remove刪除
            with open('./s_m_files/' + teacher + '.json', 'w', encoding='utf-8') as d_s:
                json.dump(students,d_s)
            print('刪除成功')
    except FileNotFoundError:
        print('沒有學(xué)生！')

實(shí)現(xiàn)了教師登錄，注冊功能，實(shí)現(xiàn)添加學(xué)生，刪除學(xué)生，查看所有學(xué)生功能，因?yàn)樾薷男畔⒑蛦蝹€查找的實(shí)現(xiàn)類似于添加學(xué)生和刪除學(xué)生，這就沒寫，主要思想就是登陸方用字典存儲{user : pwd}，學(xué)生用字典外套列表實(shí)現(xiàn)存儲[{name : xxx , sid : xxxxx, age : xx}]，同時為每個登錄名分配一個學(xué)生列表的json數(shù)據(jù)文件，當(dāng)然可以使用一個文件搞定，但是數(shù)據(jù)顯得臃腫龐大，舉一個文件的思路最外層使用列表形式[]，里面以字典為元素，而這個元素里面存放3個鍵值對分別是登錄者的登錄號，密碼，和他管理的學(xué)生，其中學(xué)生項(xiàng)的值用字典外套列表表示。大概樣子是[{user:xx , pwd:xxxx , students:[{},{},{}]}]，有興趣的可以一試，就是遍歷的彎彎有點(diǎn)多，需要耐心排錯。

原諒我不寫注釋，但是我基本把功能分明了，每一個函數(shù)拆開都能看，應(yīng)該比較好理解。

文件結(jié)構(gòu):

image.png

效果圖

C:\Users\FL5600\PycharmProjects\venv\Scripts\python.exe C:/Users/FL5600/PycharmProjects/student_manager_system1/__init__.py
====================================================================================================
                                             學(xué)生管理系統(tǒng)-教師端                                             
                                         

1.登錄

2.注冊

3.退出                                         
====================================================================================================
輸入命令：2
please input your infomation:
username:ssss
password:12345678
put password again:1234567
input again error!
put password again:12345678
registed success
====================================================================================================
                                             學(xué)生管理系統(tǒng)-教師端                                             
                                         

1.登錄

2.注冊

3.退出                                         
====================================================================================================
輸入命令：1
username:ssss
password:12345678
login in >>>>
login success
====================================================================================================
                                              學(xué)生信息管理系統(tǒng)                                              

                                            1       添加學(xué)生                                            
                                            2       查看學(xué)生                                            
                                            3       刪除學(xué)生                                            
                                            4       立即退出                                            
====================================================================================================
請輸入您的命令：1
輸入學(xué)生姓名：jack
輸入學(xué)生年齡：23
輸入學(xué)生學(xué)號：2018001
添加成功
是否繼續(xù)添加y/n：y
輸入學(xué)生姓名：tony
輸入學(xué)生年齡：24
輸入學(xué)生學(xué)號：2018002
添加成功
是否繼續(xù)添加y/n：n
====================================================================================================
                                              學(xué)生信息管理系統(tǒng)                                              

                                            1       添加學(xué)生                                            
                                            2       查看學(xué)生                                            
                                            3       刪除學(xué)生                                            
                                            4       立即退出                                            
====================================================================================================
請輸入您的命令：2
name:jack sid:2018001 age:23 
name:tony sid:2018002 age:24 
====================================================================================================
                                              學(xué)生信息管理系統(tǒng)                                              

                                            1       添加學(xué)生                                            
                                            2       查看學(xué)生                                            
                                            3       刪除學(xué)生                                            
                                            4       立即退出                                            
====================================================================================================
請輸入您的命令：3
請輸入學(xué)生學(xué)號：2018005
沒有該學(xué)生
是否繼續(xù)刪除y/n：y
請輸入學(xué)生學(xué)號：2018001
刪除成功
是否繼續(xù)刪除y/n：n
====================================================================================================
                                              學(xué)生信息管理系統(tǒng)                                              

                                            1       添加學(xué)生                                            
                                            2       查看學(xué)生                                            
                                            3       刪除學(xué)生                                            
                                            4       立即退出                                            
====================================================================================================
請輸入您的命令：2
name:tony sid:2018002 age:24 
====================================================================================================
                                              學(xué)生信息管理系統(tǒng)                                              

                                            1       添加學(xué)生                                            
                                            2       查看學(xué)生                                            
                                            3       刪除學(xué)生                                            
                                            4       立即退出                                            
====================================================================================================
請輸入您的命令：4
====================================================================================================
                                             學(xué)生管理系統(tǒng)-教師端                                             
                                         

1.登錄

2.注冊

3.退出                                         
====================================================================================================
輸入命令：1
username:ghjk
password:235678
please check your username or password!we will return
====================================================================================================
                                             學(xué)生管理系統(tǒng)-教師端                                             
                                         

1.登錄

2.注冊

3.退出                                         
====================================================================================================
輸入命令：3

Process finished with exit code 0

更新相關(guān)：

• 學(xué)號自動生成，在s_m_files中創(chuàng)建一個studnt_count.txt文件存儲學(xué)生數(shù)量，不管哪個老師添加學(xué)生都要在生成學(xué)號前先讀取studnt_count.txt中的數(shù)量，在添加學(xué)生后，數(shù)量+1再寫入，關(guān)鍵代碼如下：

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('讀取成功')
            return content
            break
        except FileNotFoundError:
            order = input('文件未找到，是否創(chuàng)建？y/n：')
            if order == 'y':
                f = open(filename,'w',encoding='utf-8')
                f.close()
                order1 = input('是否寫入內(nèi)容？y/n：')
                if order1 == 'y':
                    new = input('輸入寫入內(nèi)容：')
                    with open(filename,'w',encoding='utf-8') as txtfile:
                        txtfile.write(new)
                        print('寫入成功！')
            else:
                filename = input('請重新輸入路徑：')


def txtfile_write(filename,title):
        with open(filename,'w',encoding='utf-8') as txtfile:
            txtfile.write(str(title))
            print('寫入成功')

gl_s中的添加學(xué)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')) # 讀取已經(jīng)存在的所有學(xué)生數(shù)量
    student_counts = student_count + 1 # 添加一個學(xué)生就+1(因?yàn)樯蓪W(xué)號，就是刪除學(xué)生該值也不會變小)
    student_info['sid'] = '2018'+str(student_counts).rjust(4,'0') # 自動生成
    txtfile_write('./s_m_files/student_count.txt',student_counts) # 覆蓋寫入
    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')

• 注冊名重復(fù)判斷：主要思想是
  context = json.load(teacher)
  {user:pwd}.keys() in [x.keys() for x in context]
  判斷輸入的鍵是否存在于已經(jīng)保存各登錄名的鍵中

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（帶清屏功能）：

image.png

image.png

image.png