python超详细实现完整学生成绩管理系统

　　读万卷书不如行万里路，只学书上的理论是远远不够的，只有在实战中才能获得能力的提升，本篇文章手把手带你用Python实现一个完整版学生成绩管理系统,大家可以在过程中查缺补漏，提升水平 学生成绩管理系统简介
　　一个带有登录界面具有增减改查功能的学生成绩管理系统(面向对象思想，利用tkinter库进行制作，利用.txt文件进行存储数据)
　　源代码
　　仅供学习参考，最好还是自己多敲多练习(实践是检验真理的唯一标准)students.txt
　　用于存储数据main.pyfrom tkinter import * from Login import * import tkinter as tk  root = tk.Tk() root.title(＂欢迎进入学生成绩管理系统＂) LoginPage(root) root.mainloop()Login.pyfrom tkinter import * from tkinter.messagebox import * from MenuPage import *   class LoginPage(object):     def __init__(self, master=None):         self.root = master  # 定义内部变量root         self.root.geometry(＂%dx%d＂ % (300, 180))  # 设置窗口大小         self.username = StringVar()         self.password = StringVar()         self.createPage()      def createPage(self):         self.page = Frame(self.root)  # 创建Frame         self.page.pack()         Label(self.page).grid(row=0, stick=W)         Label(self.page, text=＂账户: ＂).grid(row=1, stick=W, pady=10)         Entry(self.page, textvariable=self.username).grid(row=1, column=1, stick=E)         Label(self.page, text=＂密码: ＂).grid(row=2, stick=W, pady=10)         Entry(self.page, textvariable=self.password, show=＂*＂).grid(row=2, column=1, stick=E)         Button(self.page, text=＂登陆＂, command=self.loginCheck).grid(row=3, stick=W, pady=10)         Button(self.page, text=＂退出＂, command=self.page.quit).grid(row=3, column=1, stick=E)      def loginCheck(self):         name = self.username.get()         password = self.password.get()         if name == ＂hacker707＂ and password == ＂admin＂:             self.page.destroy()             MenuPage(self.root)         else:             showinfo(title=＂错误＂, message=＂账号或密码错误！＂)db.pyimport json   class StudentDB(object):     def __init__(self):         self.students = []         self._load_students_data()      def insert(self, student):         self.students.append(student)         print(self.students)      def all(self):         return self.students      def delete_by_name(self, name):  # 删除数据         for student in self.students:             if name == student[＂name＂]:                 self.students.remove(student)                 break         else:             return False         return True      # 查询     def search_by_name(self, name):         for student in self.students:             if name == student[＂name＂]:                 return student  # 姓名+成绩         else:             return False      # 修改     def update(self, stu):  # 修改数据         name = stu[＂name＂]         for student in self.students:             if name == student[＂name＂]:                 student.update(stu)                 return True         else:             return False      # 加载文件     def _load_students_data(self):         with open(＂students.txt＂, ＂r＂, encoding=＂utf-8＂) as f:             text = f.read()         if text:             self.students = json.loads(text)      # 保存数据     def save_data(self):         with open(＂students.txt＂, ＂w＂, encoding=＂utf-8＂) as f:             text = json.dumps(self.students, ensure_ascii=False)             f.write(text)   db = StudentDB()MenuPage.pyimport tkinter as tk from view import *   class MenuPage(object):     def __init__(self, master=None):         self.root = master         self.root.geometry(＂%dx%d＂ % (600, 400))         self.create_page()         self.input_page = InputFrame(self.root)         self.query_page = QuerryFrame(self.root)         self.delete_page = DeleteFrame(self.root)         self.update_page = UpdateFrame(self.root)         self.about_page = AboutFrame(self.root)         self.input_page.pack()      def create_page(self):         # 创建菜单对象         menubar = tk.Menu(self.root)         # add_command 添加         menubar.add_command(label=＂录入＂, command=self.input_data)  # label         menubar.add_command(label=＂查询＂, command=self.query_data)  # label         menubar.add_command(label=＂删除＂, command=self.delete_data)  # label         menubar.add_command(label=＂修改＂, command=self.update_data)  # label         menubar.add_command(label=＂关于＂, command=self.about_data)  # label         # 设置菜单栏         self.root.config(menu=menubar)      # 切换界面     def input_data(self):         self.input_page.pack()         self.update_page.pack_forget()         self.delete_page.pack_forget()         self.about_page.pack_forget()         self.query_page.pack_forget()      def query_data(self):         self.input_page.pack_forget()         self.query_page.pack()         self.update_page.pack_forget()         self.delete_page.pack_forget()         self.about_page.pack_forget()      def update_data(self):         self.input_page.pack_forget()         self.update_page.pack()         self.delete_page.pack_forget()         self.about_page.pack_forget()         self.query_page.pack_forget()      def delete_data(self):         self.input_page.pack_forget()         self.update_page.pack_forget()         self.delete_page.pack()         self.about_page.pack_forget()         self.query_page.pack_forget()      def about_data(self):         self.input_page.pack_forget()         self.update_page.pack_forget()         self.delete_page.pack_forget()         self.about_page.pack()         self.query_page.pack_forget()view.pyimport tkinter as tk from db import db from tkinter import ttk   # 录入类 class InputFrame(tk.Frame):     def __init__(self, master=None):         super().__init__(master)         self.root = master         self.name = tk.StringVar()         self.math = tk.StringVar()         self.chinese = tk.StringVar()         self.english = tk.StringVar()         self.status = tk.StringVar()         self.create_page()      def create_page(self):         tk.Label(self).grid(row=0, stick=tk.W, pady=10)         tk.Label(self, text=＂姓名:＂).grid(row=1, stick=tk.W, pady=10)         # 单行文本框 entry，textvariable绑定变量         tk.Entry(self, textvariable=self.name).grid(row=1, column=1, stick=tk.E)          tk.Label(self, text=＂数学:＂).grid(row=2, stick=tk.W, pady=10)         # 单行文本框 entry，textvariable绑定变量         tk.Entry(self, textvariable=self.math).grid(row=2, column=1, stick=tk.E)          tk.Label(self, text=＂语文:＂).grid(row=3, stick=tk.W, pady=10)         # 单行文本框 entry，textvariable绑定变量         tk.Entry(self, textvariable=self.chinese).grid(row=3, column=1, stick=tk.E)          tk.Label(self, text=＂英语:＂).grid(row=4, stick=tk.W, pady=10)         # 单行文本框 entry，textvariable绑定变量         tk.Entry(self, textvariable=self.english).grid(row=4, column=1, stick=tk.E)          tk.Button(self, text=＂录入＂, command=self.recode_student).grid(row=5, column=1, stick=tk.E, pady=10)         tk.Label(self, textvariable=self.status).grid(row=6, column=1, stick=tk.E, pady=10)      # 录入成绩     def recode_student(self):         student = {             ＂name＂: self.name.get(),             ＂math＂: self.math.get(),             ＂chinese＂: self.chinese.get(),             ＂english＂: self.english.get(),         }  # 一个学生的成绩         db.insert(student)         # get()得到值         # set()设置值         self.status.set(＂插入数据成功！＂)         self._clear_data()         db.save_data()      # 清空文本数据     def _clear_data(self):         self.name.set(＂＂)         self.math.set(＂＂)         self.chinese.set(＂＂)         self.english.set(＂＂)   # 查询类 class QuerryFrame(tk.Frame):     def __init__(self, master=None):         super().__init__(master)         self.root = master         self.create_page()      # 创建查询界面     def create_page(self):         self.create_tree_view()         self.show_data_frame()         # grid()         tk.Button(self, text=＂刷新数据＂, command=self.show_data_frame).pack(anchor=tk.E, pady=5)      # Treeview     def create_tree_view(self):         # 表头         columns = (＂name＂, ＂chinese＂, ＂math＂, ＂english＂)         self.tree_view = ttk.Treeview(self, show=＂headings＂, columns=columns)         self.tree_view.column(＂name＂, width=80, anchor=＂center＂)         self.tree_view.column(＂chinese＂, width=80, anchor=＂center＂)         self.tree_view.column(＂math＂, width=80, anchor=＂center＂)         self.tree_view.column(＂english＂, width=80, anchor=＂center＂)         self.tree_view.heading(＂name＂, text=＂姓名＂)         self.tree_view.heading(＂chinese＂, text=＂语文＂)         self.tree_view.heading(＂math＂, text=＂数学＂)         self.tree_view.heading(＂english＂, text=＂英语＂)         self.tree_view.pack()      # 显示数据     def show_data_frame(self):         # 删除原节点 map(int,值）         for i in map(self.tree_view.delete, self.tree_view.get_children(＂＂)):             pass         # 拿到列表里面所有值、students[]         students = db.all()         # 同时拿到索引跟value值         for index, stu in enumerate(students):             self.tree_view.insert(＂＂, index, values=(stu[＂name＂], stu[＂chinese＂], stu             [＂math＂], stu[＂english＂]))   class DeleteFrame(tk.Frame):     def __init__(self, master=None):         super().__init__(master)         tk.Label(self, text=＂删除数据＂).pack()         self.status = tk.StringVar()         self.de_name = tk.StringVar()  # 获取删除学生的姓名         self.create_page()      # 创建界面     def create_page(self):         tk.Label(self, text=＂根据姓名删除信息＂).pack(anchor=tk.W, padx=20)         e1 = tk.Entry(self, textvariable=self.de_name)         e1.pack(side=tk.LEFT, padx=20, pady=5)          tk.Button(self, text=＂删除＂, command=self._delete).pack(side=tk.RIGHT)         tk.Label(self, textvariable=self.status).pack()      # 删除     def _delete(self):         name = self.de_name.get()         print(name)         result = db.delete_by_name(name)         if result:             self.status.set(f＂{name}已经被删＂)             self.de_name.set(＂＂)         else:             self.status.set(f＂{name}不存在＂)   class UpdateFrame(tk.Frame):     def __init__(self, master=None):         super().__init__(master)         self.root = master         tk.Label(self, text=＂修改界面＂).pack()         self.change_frame = tk.Frame(self)         self.change_frame.pack()         self.name = tk.StringVar()         self.math = tk.StringVar()         self.chinese = tk.StringVar()         self.english = tk.StringVar()         self.status = tk.StringVar()         self.create_page()      def create_page(self):         tk.Label(self.change_frame).grid(row=0, stick=tk.W, pady=10)         tk.Label(self.change_frame, text=＂姓名:＂).grid(row=1, stick=tk.W, pady=10)         # 单行文本框 entry，textvariable绑定变量         tk.Entry(self.change_frame, textvariable=self.name).grid(row=1, column=1, stick=tk.E)          tk.Label(self.change_frame, text=＂数学:＂).grid(row=2, stick=tk.W, pady=10)         # 单行文本框 entry，textvariable绑定变量         tk.Entry(self.change_frame, textvariable=self.math).grid(row=2, column=1, stick=tk.E)          tk.Label(self.change_frame, text=＂语文:＂).grid(row=3, stick=tk.W, pady=10)         # 单行文本框 entry，textvariable绑定变量         tk.Entry(self.change_frame, textvariable=self.chinese).grid(row=3, column=1, stick=tk.E)          tk.Label(self.change_frame, text=＂英语:＂).grid(row=4, stick=tk.W, pady=10)         # 单行文本框 entry，textvariable绑定变量         tk.Entry(self.change_frame, textvariable=self.english).grid(row=4, column=1, stick=tk.E)          # 按钮         tk.Button(self.change_frame, text=＂查询＂, command=self._search).grid(row=6, column=0, stick=tk.W, pady=10)         tk.Button(self.change_frame, text=＂修改＂, command=self._change).grid(row=6, column=1, stick=tk.E, pady=10)          tk.Label(self.change_frame, textvariable=self.status).grid(row=7, column=1, stick=tk.E, pady=10)      # 查询     def _search(self):         name = self.name.get()         student = db.search_by_name(name)         if student:             self.math.set(student[＂math＂])             self.chinese.set(student[＂chinese＂])             self.english.set(student[＂english＂])             self.status.set(f＂查询到{name}同学的信息＂)         else:             self.status.set(f＂没有查询到{name}同学的信息＂)      #  更改成绩     def _change(self):         name = self.name.get()         math = self.math.get()         chinese = self.chinese.get()         english = self.english.get()         stu = {             ＂name＂: name,             ＂math＂: math,             ＂chinese＂: chinese,             ＂english＂: english,         }         r = db.update(stu)         if r:             self.status.set(f＂{name}同学的信息更新完毕＂)         else:             self.status.set(f＂{name}同学的信息更新失败＂)   class AboutFrame(tk.Frame):     def __init__(self, master=None):         super().__init__(master)         self.root = master         self.create_page()      def create_page(self):         tk.Label(self, text=＂关于本作品(人生苦短，我用python)＂).pack(anchor=tk.W)
　　原文链接：https://www.jb51.net/article/241166.htm