程序设计之学生成绩信息管理系统（附源码

学生成绩信息管理系统GUI（附源码

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任务需求

需求
班级类，学生类，课程类，选课
主要功能：
（1）能按学期、按班级完成对学生成绩的录入、修改
（2）能按班级统计学生的成绩，求学生的总分及平均分，并能根据学生的平均成绩进行排序
（3）能查询学生成绩，不及格科目及学生名单
（4）能按班级输出学生的成绩单
登录框账号密码都是：student1

1首先登陆然后录入学生相关信息

2创建窗口录入成绩（录入完所有学生成绩后再点已经录入完成，然后关掉录入成绩窗口）
这里利用的字典一个个导入的成绩

3修改信息，修改好后可以直接确定就行就直接保存在了同一个文件夹下的txt文件里面了

4这里可以通过输入姓名查询，就是字典的应用
5打印的成绩单全是在同一个文件夹里面的txt文件有标注
源码给大家奉上，有漏洞bug希望大家反馈

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import tkinter as tk
import tkinter
import tkinter.font as font
from tkinter import messagebox
import codecs
from tkinter import *
import random
def creatAuthCode():
   res1=""
   res2=""
   res3=""
   for i in range(2):
       num=random.randint(0,9)
       res1+=str(num)
       num=random.randint(65,91)
       res2+=str(chr(num))
       num=random.randint(97,123)
       res3+=str(chr(num))
   string=str(res1+res2+res3)
   txt.set(string)
window5 = tk.Tk()
window5.title('学生成绩管理登录界面')       # 设置窗口的标题
window5.geometry('250x150+600+250')     # 设置窗口的大小

tk.Label(window5, text="用户名:").place(x=30, y=40, anchor='nw')
tk.Label(window5, text="密码  :").place(x=30, y=60, anchor='nw')

usr_name_var = tk.StringVar()
password_var = tk.StringVar()
tk.Entry(window5, textvariable=usr_name_var)\
   .place(x=70, y=40, anchor='nw')
tk.Entry(window5, textvariable=password_var, show='*')\
   .place(x=70, y=60, anchor='nw')
e1=usr_name_var
e2=password_var
def login():
   if e1.get() == "student1"and e2.get()=="student1":

       dict = {}

       def G():

           window1 = tkinter.Tk()
           window1.geometry("300x80+600+240")
           window1.title("学生信息录入")
           lb2 = tkinter.Label(window1, text="姓名")
           lb2.grid(row=2, column=0)
           e4 = Entry(window1)
           e4.grid(row=2, column=1, padx=10, pady=5)
           lb1 = tkinter.Label(window1, text="成绩")
           lb1.grid(row=4, column=0)
           e5 = Entry(window1)
           e5.grid(row=4, column=1, padx=10, pady=5)
           bt = tkinter.Button(window1, text='确定', width=10, command=window1.quit) \
               .grid(row=2, column=5, sticky=E, padx=10, pady=5)
           mainloop()
           nm = str(e4.get())
           sc = float(e5.get())
           with codecs.open('学生信息', mode='a', encoding='utf-8') as file_txt:
               for i in range(1):
                   file_txt.write('\n' + '姓名' + str(nm) + '\t' + "成绩" + str(sc) + '\t')
           dict[nm] = sc
           button = tkinter.Button(window1, text="已录入所有学生", command=M, width=15, height=1)
           button.grid(column=1, row=5)
           button5 = tkinter.Button(window1, text="下一页", command=G, width=10, height=1)
           button5.grid(column=2, row=4)

       def M():
           dict1 = sorted(dict.items(), key=lambda dict: dict[1], reverse=True)
           with codecs.open('学生成绩由大小', mode='a', encoding='utf-8') as file_txt:
               for i in dict1:
                   file_txt.write('\n' + str(i) + '\t')

       def find():
           window2 = tkinter.Tk()
           window2.geometry("250x80+600+350")
           window2.title("学生成绩查询")
           e6 = Entry(window2)
           e6.grid(row=2, column=1, padx=8, pady=5)
           lb3 = tkinter.Label(window2, text="输入姓名")
           lb3.grid(row=2, column=0)
           bt1 = tkinter.Button(window2, text='确定', width=10, command=window2.quit) \
               .grid(row=2, column=4, sticky=E, padx=8, pady=5)
           mainloop()
           xm = str(e6.get())
           messagebox.showinfo(title=xm, message=(xm, dict[xm]))

       def rule():
           screenwidth = window.winfo_screenwidth()
           screenheight = window.winfo_screenheight()
           width = 250
           height = 250
           w = (screenwidth - width) / 2
           h = (screenheight - height) / 2
           return "%dx%d+%d+%d" % (height, width, w, h)

       def change():
           change = Toplevel()
           change.title("修改信息")
           change.geometry(rule())
           text = tkinter.Text(change, font=("微软雅黑", 14), width=40, height=12)
           text.pack()
           f = open("学生信息", "r", encoding="utf-8")
           s = f.read()
           text.insert(END, s)
           f.close()

           def exchange():
               f = open("学生信息", "w+", encoding="utf-8")
               Text = text.get('0.0', END)
               f.write(Text)
               f.close()
               change.destroy()

           tkinter.Button(change, text="确定", font=("微软雅黑", 14), command=exchange, width=5, height=1).place(x=180,
                                                                                                           y=200)

       def H():
           root = Tk()
           root.title("学生人数")
           root.geometry("249x150+600+350")
           Label(root, text="学生班级").grid(row=2, column=1)
           Label(root, text="班级人数").grid(row=4, column=1)
           Label(root, text="考试科目").grid(row=6, column=1)
           e4 = Entry(root)
           e3 = Entry(root)
           e5 = Entry(root)
           e3.grid(row=2, column=2, padx=10, pady=5)
           e4.grid(row=4, column=2, padx=10, pady=5)
           e5.grid(row=6, column=2, padx=10, pady=5)
           bt = tkinter.Button(root, text='确定', width=10, command=root.quit) \
               .grid(row=8, column=2, sticky=E, padx=10, pady=2)
           mainloop()
           cl = str(e4.get())
           n = str(e3.get())
           sb = str(e5.get())
           l = "学生班级"
           m = "班级人数"
           k = "科目"
           with codecs.open('学生信息', mode='a', encoding='utf-8') as file_txt:
               for i in range(1):
                   file_txt.write('\n' + (l) + '\t' + str(cl) + '\t')
                   file_txt.write('\n' + (m) + '\t' + str(n) + '\t')
                   file_txt.write('\n' + (k) + '\t' + str(sb) + '\t')

       def FA():
           for key in dict:
               if dict[key] < 60:
                   with codecs.open('不及格学生', mode='a', encoding='utf-8') as file_txt:
                       file_txt.write('\n' + str(key) + '\t' + str(dict[key]) + '\t')

       window = tkinter.Tk()
       window.geometry("249x280+600+350")
       window.title("学生管理系统精简版")
       window["background"] = "white"
       button = tkinter.Button(window, text="录入学生信息", fg="white", bg="Green", command=H, width=40, height=3)
       button.grid(column=20, row=2)
       button1 = tkinter.Button(window, text="录入学生成绩", fg="white", bg="Green", command=G, width=40, height=3)
       button1.grid(column=20, row=4)
       button2 = tkinter.Button(window, text="修改信息", fg="white", bg="Green", command=change, width=40, height=3)
       button2.grid(column=20, row=6)
       button3 = tkinter.Button(window, text="查询学生成绩", fg="white", bg="Green", command=find, width=40, height=3)
       button3.grid(column=20, row=8)
       button4 = tkinter.Button(window, text="打印不及格学生成绩表", fg="white", bg="Green", command=FA, width=40, height=3)
       button4.grid(column=20, row=10)
       button5 = tkinter.Button(window, text="打印学生排名成绩表", fg="white", bg="Green", command=M, width=40, height=3)
       button5.grid(column=20, row=12)
       tkinter.mainloop()
   else:
       messagebox.showinfo(title='用户名或密码错误',message="去一遍玩去")
       return False
v = StringVar()
code=Label(window5,text="验证码:")
code.place(relx=0.22,rely=0.6,anchor=CENTER)
code=Entry(window5)
code.place(relx=0.38,rely=0.6,anchor=CENTER,width=50,height=20)
txt=StringVar()
txt.set("获取验证码")
codestr=Button(window5,textvariable=txt,command=creatAuthCode,fg="red",bg="black")
codestr.place(relx=0.8,rely=0.6,anchor=CENTER)
enter=Button(window5,text="登录",command=login,width=10,height=2)
enter.place(relx=0.5,rely=0.8,anchor=CENTER)
window5.mainloop()