python学生成绩管理系统【完整版】

✅作者简介：大家好我是hacker707,大家可以叫我hacker，新星计划第三季python赛道Top1?

?个人主页：​​hacker707的csdn博客​​

?系列专栏：​​python​​​

@TOC

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.py

from 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.py

from 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.py

import 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.py

import 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.py

import 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)

结束语