python实现简单成绩录入系统

from tkinter import*#这是一个python模块，python3中都有
import tkinter.messagebox#这也是一个模块
from file_read import read
from file_write import write
 
class student_main():#定义一个学生类
 def __init__(self):
  self.name =''
  self.ID=''
  self.lessons={}
  self.sum=''
  self.average=''

stulist=read()
stu=student_main()

#登录页面--------------------------------------------------------------------
def seacharID(stulist,ID):#这是一个对是否重复id的检验
 for x in stulist:
 if x.ID==ID:
  return True
#这是一个成绩录入时的主要函数
def next():
 root_next=Tk()
 root_next.title('成绩录入')
 root_next.geometry('200x200+230+330')

 var_lesson=StringVar()
 var_score=StringVar()

 Label(root_next,text='课程名').place(x=20,y=50)
 Label(root_next,text='成绩').place(x=20,y=90)

 enter_lesson=Entry(root_next,textvariable=var_lesson,width=15)
 enter_lesson.place(x=70,y=50)
 enter_score=Entry(root_next,textvariable=var_score,width=15)
 enter_score.place(x=70,y=90)

 def btn3_login():
 x=var_lesson.get()
 y=var_score.get()
 if y.isdigit()==True:
  if int(y)>100:
  tkinter.messagebox.showerror('错误','请输入正确的成绩！！！')
  var_score.set('')
  elif int(y)<0:
  tkinter.messagebox.showerror('错误','请输入正确的成绩！！！')
  var_score.set('')
  else:
  stu.lessons[x]=y
  root_next.destroy()
  next()
 else:
  tkinter.messagebox.showwarning('提示','请输入数字')

 def btn4_login():
 x=var_lesson.get()
 y=var_score.get()
 stu.lessons[x]=y
 tkinter.messagebox.showinfo('录入成功')
 root_next.destroy()
  
 btn3=Button(root_next,text='录入新学科',bg='#5EAEFF',bd=0,command=btn3_login)
 btn3.place(y=130,width=99,height=20)
 btn4=Button(root_next,text='完成',bg='#FF6868',bd=0,command=btn4_login)
 btn4.place(x=101,y=130,width=99,height=20)
  #页面循环
 root_next.mainloop()
#核心函数
def entry():

 root_e=Tk()
 root_e.title("增")
 root_e.geometry('200x200+230+330')

 var_user=StringVar()
 var_ID=StringVar()

 Label(root_e,text='姓名').place(x=20,y=50)
 Label(root_e,text='ID').place(x=20,y=90)

 enter_user=Entry(root_e,textvariable=var_user,width=15)
 enter_user.place(x=70,y=50)
 enter_user.focus()
 enter_ID=Entry(root_e,textvariable=var_ID,width=15)
 enter_ID.place(x=70,y=90)

 def btn1_login():
 x=var_user.get()
 y=var_ID.get()
 pop=seacharID(stulist,y)
 if pop==True:
  tkinter.messagebox.showwarning('错误','该学号已存在')
  var_ID.set("")
  var_user.set("")
 else:
  if y.isdigit()==True:
  conunt=0
  sum_opp=0
  stu.name=x
  stu.ID=y
  root_e.destroy()
  next()
  
  for x in stu.lessons.values():
   sum_opp=sum_opp+int(x)
   conunt+=1

  stu.sum=str(sum_opp)
  average_opp=int(stu.sum)/conunt
  stu.average=str(average_opp)

  stulist.append(stu)
  
  write(stulist)

  menu()
  else:
  tkinter.messagebox.showwarning('提示','您输入了非数字的内容')
  var_ID.set(" ")

 def btn2_login():
 root_e.destroy()
 menu()

 btn1=Button(root_e,text='下一步',command=btn1_login,bd=0,bg='Silver')
 btn1.place(y=140,width=99,height=20)
 btn2=Button(root_e,text='取消',command=btn2_login,bd=0,bg='Silver')
 btn2.place(x=100,y=140,width=99,height=20)

 root_e.mainloop()
#删除页面------------------------------------------------------------------
def deling():
 root=Tk()
 root.title('删')
 root.geometry('200x200+230+330')

 Label(root,text='学号').place(x=40,y=50)

 def btn_ok():
 x=var_del.get()
 if x.isdigit()==True:
  count=0
  for i in stulist:
  if i.ID==x:
   stulist.remove(i)
   write(stulist)
   tkinter.messagebox.showinfo("提示",'成功删除该学生信息')
   root.destroy()
   menu()
  else:
   count+=1
  if count==len(stulist):
  tkinter.messagebox.showinfo(title='错误',message='不存在该账户！')
  var_del.set('')
 else:
  tkinter.messagebox.showerror('警告','请输入数字')

 def btn_cancel():
 x=tkinter.messagebox.askokcancel('提示','确定离开？')
 if x==True:
  root.destroy()
 menu()

 var_del=StringVar()
 entry_del=Entry(root,textvariable=var_del,width=10)
 entry_del.place(x=80,y=50)

 btn1=Button(root,bd=0,bg='Silver',command=btn_ok,text='确定')
 btn1.place(y=110,width=99,height=20)
 btn2=Button(root,bd=0,bg='Silver',command=btn_cancel,text='取消')
 btn2.place(x=101,y=110,width=99,height=20)

 root.mainloop()
#修改页面---------------------------------------------------------------
def change():
 root=Tk()
 root.title("改")
 root.geometry('200x200+230+330')

 Label(root,text='学号').place(x=40,y=50)

 var_change=StringVar()
 entry_change=Entry(root,textvariable=var_change,width=10)
 entry_change.place(x=80,y=50)

 def var_ok():
 x=var_change.get()
 if x.isdigit()==True:
  counton=0
  for i in stulist:
  if x==i.ID:
   stulist.remove(i)
   write(stulist)
   root.destroy()
   entry()
  else:
   counton+=1
  if counton==len(stulist):
  tkinter.messagebox.showerror('错误','不存在该账户！')
 else:
  tkinter.messagebox.showerror('警告','输入数字ID')

 def var_cancel():
 x=tkinter.messagebox.askokcancel('提示','确定离开')
 if x==True:
  root.destroy()


 btn1=Button(root,bd=0,bg='Silver',command=var_ok,text='确定')
 btn1.place(y=110,width=99,height=20)
 btn2=Button(root,bd=0,bg='Silver',command=var_cancel,text='取消')
 btn2.place(x=101,y=110,width=99,height=20)

 root.mainloop()
#查询页面------------------------------------------------------------------
def next_i(x):
 window=Tk()
 window.title('显示信息')
 window.geometry('400x200')

 counton=0
 for i in stulist:
 if i.ID==x:
  ai_name=i.name
  ai_ID=i.ID
  ai_lesson=str(i.lessons)
  ai_sum=i.sum
  ai_ave=i.average
 else:
  ai_name=' '
  ai_ID=' '
  ai_lesson='该学号不存在'
  ai_sum=' '
  ai_ave=' '
  
 Label(window,height=2,width=8,text=ai_name).pack()
 Label(window,height=2,width=8,text=ai_ID).pack()
 Label(window,height=2,width=100,text=ai_lesson).pack()
 Label(window,height=2,width=8,text=ai_sum).pack()
 Label(window,height=2,width=8,text=ai_ave).pack()

 window.mainloop()

def search():
 root=Tk()
 root.title('')
 root.geometry('200x200+230+330')

 Label(root,text='学号').place(x=40,y=50)

 def btn_ok():
 x=var_display.get()
 if x.isdigit()==True:
  next_i(x)
 else:
  tkinter.messagebox.showerror('警告','请输入数字ID')

 def btn_cancel():
 root.destroy()
 menu()

 var_display=StringVar()
 entry_display=Entry(root,textvariable=var_display,width=10)
 entry_display.place(x=80,y=50)

 btn1=Button(root,bd=0,bg='Silver',command=btn_ok,text='确定')
 btn1.place(y=110,width=99,height=20)
 btn2=Button(root,bd=0,bg='Silver',command=btn_cancel,text='返回主菜单')
 btn2.place(x=101,y=110,width=99,height=20)

 root.mainloop()
#排序页面--------------------------------------------------------------
def display(x):
 window=Tk()
 window.title()
 contunt=0
 for i in x:
 contunt+=1
 all_list=['第'+str(contunt)+'名：']
 all_list.append('姓名：'+i.name+'\\')
 all_list.append('学号：'+i.ID+'\\')
 for m,n in i.lessons.items():
  all_list.append(m+":")
  all_list.append(n)
  all_list.append('\\')
 all_list.append('总分：'+i.sum+'\\')
 all_list.append('平均分：'+i.average)
 Label(window,bd=20,text=all_list).pack()

 window.mainloop()


def sorting():
 for i in range(len(stulist)-1):
 for j in range(i+1,len(stulist)):
  temp=student_main()
  if stulist[i].average<stulist[j].average:
  temp=stulist[i]
  stulist[i]=stulist[j]
  stulist[j]=temp
 display(stulist)

#菜单------------------------------------------------------
def menu():
 root=Tk()
 root.title('主视面')
 root.geometry('250x300+150+100')

 def var_one():
 root.destroy()
 entry()
 def var_two():
 root.destroy()
 deling()
 def var_three():
 root.destroy()
 change()
 def var_four():
 root.destroy()
 search()
 def var_five():
 sorting()
 def var_six():
 root.destroy()
 
 var0=Label(root,text='--------------菜单--------------',font=('Arial',13),width=30,height=1)
 var0.pack()
 var1=Button(root,text='1.添加界面',bg='Silver',font=('Arial',12),width=20,height=1,bd=0,command=var_one)
 var1.pack(pady=4)
 var2=Button(root,text='2.删除界面',bg='Silver',font=('Arial',12),width=20,height=1,bd=0,command=var_two)
 var2.pack(pady=4)
 var3=Button(root,text='3.更改界面',bg='Silver',font=('Arial',12),width=20,height=1,bd=0,command=var_three)
 var3.pack(pady=4)
 var4=Button(root,text='4.查询界面',bg='Silver',font=('Arial',12),width=20,height=1,bd=0,command=var_four)
 var4.pack(pady=4)
 var4=Button(root,text='5.成绩排序',bg='Silver',font=('Arial',12),width=20,height=1,bd=0,command=var_five)
 var4.pack(pady=4)
 var6=Button(root,text='退出',bg='Silver',font=('Arial',12),width=20,height=1,bd=0,command=var_six)
 var6.pack(pady=4)
 root.mainloop()

menu()

class student_main():
 def __init__(self):
  self.name =''
  self.ID=''
  self.lessons={}
  self.sum=''
  self.average=''

def read():
 stulist=[]
 x=[]
 f=open('all_student.txt','r')
 t=open('all_lesson.txt','r')
 line=f.readlines()
 lene=t.readlines()
 for i in range(len(line)):
 if (i+1)%2==1:#这里主要是读取和储存是出现了莫名的空行，我只好多录入一个空行好方便读取
  y=student_main()
  x=line[i].split(" ")
  y.name=x[0]
  y.ID=x[1]
  j=int((i+1)/2)
  z=eval(lene[j])
  y.lessons=z
  y.sum=x[2]
  y.average=x[3]
  stulist.append(y)
 return stulist 

class student_main():
 def __init__(self):
  self.name =''
  self.ID=''
  self.lessons={}
  self.sum=''
  self.average=''

def write(stulist):
 f=open('all_student.txt','w')
 for i in stulist:
 f.write(i.name+' '+i.ID+' '+i.sum+' '+i.average)
 f.write('\n')
 f.close()

 t=open('all_lesson.txt','w')
 for i in stulist:
 t.write(str(i.lessons))
 t.write('\n')
 t.close()