有错误 求修改一下 求大神
from tkinter import *
import tkinter.font as tkFont
import tkinter as tk
from tkinter import ttk
LARGE_FONT= ("Verdana", 20)
class Application(tk.Tk):
def __init__(self):
super().__init__()
self.wm_title("学生信息管理系统")
container = tk.Frame(self)
container.pack(side="top", fill="both", expand = True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
self.frames = {}
#循环功能界面
for F in (StartPage, PageOne, PageTwo, PageThree,PageFour):
frame = F(container, self)
self.frames[F] = frame
frame.grid(row=0, column=0, sticky="nsew") # 四个页面的位置都是 grid(row=0, column=0), 位置重叠，只有最上面的可见！！
self.show_frame(StartPage)
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise() # 切换，提升当前 tk.Frame z轴顺序（使可见）！！此语句是本程序的点睛之处
#主页面
class StartPage(tk.Frame):
'''主页'''
def __init__(self, parent, root):
super().__init__(parent)
label = tk.Label(self, text="学生信息管理系统", font=LARGE_FONT)
label.pack(pady=100)
ft2=tkFont.Font(size=16)
Button(self, text="添加学生信息",font=ft2,command=lambda: root.show_frame(PageOne),width=30,height=2,fg='white',bg='gray',activebackground='black',activeforeground='white').pack()
Button(self, text="删除学生信息",font=ft2,command=lambda: root.show_frame(PageTwo),width=30,height=2).pack()
Button(self, text="修改学生信息",font=ft2,command=lambda: root.show_frame(PageThree),width=30,height=2,fg='white',bg='gray',activebackground='black',activeforeground='white').pack()
Button(self, text="查询学生信息",font=ft2,command=lambda: root.show_frame(PageFour),width=30,height=2).pack()
Button(self,text='退出系统',height=2,font=ft2,width=30,command=root.destroy,fg='white',bg='gray',activebackground='black',activeforeground='white').pack()
#添加学生信息
class PageOne(tk.Frame):
def __init__(self, parent, root):
super().__init__(parent)
label = tk.Label(self, text="添加学生信息", font=LARGE_FONT)
label.pack(pady=100)
ft3=tkFont.Font(size=14)
ft4=tkFont.Font(size=12)
Label(self,text='学生学号：',font=ft3).pack(side=TOP)
global e1
e1=StringVar()
Entry(self,width=30,textvariable=e1,font=ft3,bg='Ivory').pack(side=TOP)
Label(self,text='学生姓名：',font=ft3).pack(side=TOP)
global e2
e2=StringVar()
Entry(self,width=30,textvariable=e2,font=ft3,bg='Ivory').pack(side=TOP)
Label(self,text='学生成绩：',font=ft3).pack(side=TOP)
global e3
e3=StringVar()
Entry(self,width=30,textvariable=e3,font=ft3,bg='Ivory').pack(side=TOP)
Button(self, text="返回首页",width=8,font=ft4,command=lambda: root.show_frame(StartPage)).pack(pady=20)
Button(self, text="确定保存",width=8,font=ft4,command=self.save).pack(side=TOP)
def save(self):
with open('student_infor.txt','a+') as student_infor:
num=str(e1.get())
name=str(e2.get())
score=str(e3.get())
student_infor.write(num+' '+name+' '+score+'\n')
class PageTwo(tk.Frame):
def __init__(self, parent, root):
super().__init__(parent)
label = tk.Label(self, text="删除学生信息", font=LARGE_FONT)
label.pack(pady=100)
ft3=tkFont.Font(size=14)
ft4=tkFont.Font(size=12)
Label(self,text='请输入你要删除的学生学号：',font=ft3).pack(side=TOP)
global e4
e4=StringVar()
Entry(self,width=30,textvariable=e4,font=ft3,bg='Ivory').pack(side=TOP)
Button(self, text="确定删除",width=8,font=ft4,command=self.del1).pack(pady=20)
Button(self, text="返回首页",width=8,font=ft4,command=lambda: root.show_frame(StartPage)).pack()
#button1 = ttk.Button(self, text="回到首页", command=lambda: root.show_frame(StartPage)).pack()
#button2 = ttk.Button(self, text="去到第一页", command=lambda: root.show_frame(PageOne)).pack()
def del1(self):
num2=str(e4.get())
with open('student_infor.txt','r') as f:
lines=f.readlines()
with open('student_infor.txt','w') as f_w:
for line in lines:
if num2 in line:
continue
f_w.write(line)
#修改学生信息
class PageThree(tk.Frame):
def __init__(self, parent, root):
super().__init__(parent)
tk.Label(self, text="修改学生信息", font=LARGE_FONT).pack(pady=100)
ft3=tkFont.Font(size=14)
ft4=tkFont.Font(size=12)
Label(self,text='请输入你要修改的学生学号：',font=ft3).pack(side=TOP)
self.e5=StringVar()
Entry(self,width=30,textvariable=self.e5,font=ft3,bg='Ivory').pack(side=TOP)
Label(self,text='学生姓名：',font=ft3).pack(side=TOP)
self.e6=StringVar()
Entry(self,width=30,textvariable=self.e6,font=ft3,bg='Ivory').pack(side=TOP)
Label(self,text='学生成绩：',font=ft3).pack(side=TOP)
self.e7=StringVar()
Entry(self,width=30,textvariable=self.e7,font=ft3,bg='Ivory').pack(side=TOP)
Button(self, text="确定修改",width=8,font=ft4,command=self.modify).pack(pady=20)
Button(self, text="返回首页",width=8,font=ft4,command=lambda: root.show_frame(StartPage)).pack()
def modify(self):
num3=str(self.e5.get())
name3=str(self.e6.get())
score3=str(self.e7.get())
with open('student_infor.txt','r') as r_w:
lines1=r_w.readlines()
with open('student_infor.txt','w') as rr_w:
for line1 in lines1:
if num3 in line1:
rr_w.write(num3+' '+name3+' '+score3+'\n')
continue
rr_w.write(line1)
#查询学生成绩
class PageFour(tk.Frame):
def __init__(self, parent, root):
super().__init__(parent)
label = tk.Label(self, text="查询学生成绩", font=LARGE_FONT)
label.pack(pady=100)
tree_data=ttk.Treeview()
ft4=tkFont.Font(size=12)
#滚动条
scro=Scrollbar(self)
scro.pack(side=RIGHT,fill=Y)
lista=Listbox(self,yscrollcommand=scro.set,width=50)
f=open('student_infor.txt','r')
text=(" %-16s%-16s%-16s"%("学号","姓名","成绩"))
li=[]
for i in f.readlines():
j=i.split(' ')
j[2]=j[2].replace('\n','')
li.append(j)
li.sort(key=lambda x:x[2],reverse=False)
for i in li:
text1=(" %-16s%-16s%-16s"%(i[0],i[1],i[2]))
lista.insert(0,text1)
f.close()
lista.insert(0,text)
lista.pack()
Button(self, text="返回首页",width=8,font=ft4,command=lambda: root.show_frame(StartPage)).pack(pady=40)
if __name__ == '__main__':
# 实例化Application
app = Application()
# 主消息循环:
app.mainloop()
程序总体上没有问题，就是你要注意代码缩进，将代码的有关行缩进调整后，测试运行正常。同时，你需要在当前目录下新建一个文本文件，内容类似如下：
101 a 96
102 b 88
103 c 78
104 d 86
105 e 79
106 f 87
要运行不报错，你需要在当前目录下，新建一个student_infor.txt文件，修改缩进后代码如下，你可复制运行。
from tkinter import *
import tkinter.font as tkFont
import tkinter as tk
from tkinter import ttk
LARGE_FONT = ("Verdana", 20)
class Application(tk.Tk):
def __init__(self):
super().__init__()
self.wm_title("学生信息管理系统")
container = tk.Frame(self)
container.pack(side="top", fill="both", expand=True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
self.frames = {}
#循环功能界面
for F in (StartPage, PageOne, PageTwo, PageThree, PageFour):
frame = F(container, self)
self.frames[F] = frame
# 四个页面的位置都是 grid(row=0, column=0), 位置重叠，只有最上面的可见！！
frame.grid(row=0, column=0, sticky="nsew")
self.show_frame(StartPage)
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise() # 切换，提升当前 tk.Frame z轴顺序（使可见）！！此语句是本程序的点睛之处
#主页面
class StartPage(tk.Frame):
'''主页'''
def __init__(self, parent, root):
super().__init__(parent)
label = tk.Label(self, text="学生信息管理系统", font=LARGE_FONT)
label.pack(pady=100)
ft2 = tkFont.Font(size=16)
Button(self, text="添加学生信息", font=ft2,command=lambda: root.show_frame(PageOne),width=30,height=2,fg='white',bg='gray',activebackground='black',activeforeground='white').pack()
Button(self, text="删除学生信息", font=ft2,command=lambda: root.show_frame(PageTwo),width=30,height=2).pack()
Button(self, text="修改学生信息", font=ft2,command=lambda: root.show_frame(PageThree),width=30,height=2,fg='white',bg='gray',activebackground='black',activeforeground='white').pack()
Button(self, text="查询学生信息", font=ft2,command=lambda: root.show_frame(PageFour),width=30,height=2).pack()
Button(self, text='退出系统',height=2,font=ft2,width=30,command=root.destroy,fg='white',bg='gray',activebackground='black',activeforeground='white').pack()
#添加学生信息
class PageOne(tk.Frame):
def __init__(self, parent, root):
super().__init__(parent)
label = tk.Label(self, text="添加学生信息", font=LARGE_FONT)
label.pack(pady=100)
ft3 = tkFont.Font(size=14)
ft4 = tkFont.Font(size=12)
Label(self, text='学生学号：',font=ft3).pack(side=TOP)
global e1
e1 = StringVar()
Entry(self, width=30,textvariable=e1,font=ft3,bg='Ivory').pack(side=TOP)
Label(self, text='学生姓名：',font=ft3).pack(side=TOP)
global e2
e2 = StringVar()
Entry(self, width=30,textvariable=e2,font=ft3,bg='Ivory').pack(side=TOP)
Label(self, text='学生成绩：',font=ft3).pack(side=TOP)
global e3
e3 = StringVar()
Entry(self, width=30,textvariable=e3,font=ft3,bg='Ivory').pack(side=TOP)
Button(self, text="返回首页", width=8,font=ft4,command=lambda: root.show_frame(StartPage)).pack(pady=20)
Button(self, text="确定保存", width=8,font=ft4,command=self.save).pack(side=TOP)
def save(self):
with open('student_infor.txt', 'a+') as student_infor:
num = str(e1.get())
name = str(e2.get())
score = str(e3.get())
student_infor.write(num+' '+name+' '+score+'\n')
class PageTwo(tk.Frame):
def __init__(self, parent, root):
super().__init__(parent)
label = tk.Label(self, text="删除学生信息", font=LARGE_FONT)
label.pack(pady=100)
ft3 = tkFont.Font(size=14)
ft4 = tkFont.Font(size=12)
Label(self, text='请输入你要删除的学生学号：',font=ft3).pack(side=TOP)
global e4
e4 = StringVar()
Entry(self, width=30,textvariable=e4,font=ft3,bg='Ivory').pack(side=TOP)
Button(self, text="确定删除", width=8,font=ft4,command=self.del1).pack(pady=20)
Button(self, text="返回首页", width=8,font=ft4,command=lambda: root.show_frame(StartPage)).pack()
#button1 = ttk.Button(self, text="回到首页", command=lambda: root.show_frame(StartPage)).pack()
#button2 = ttk.Button(self, text="去到第一页", command=lambda: root.show_frame(PageOne)).pack()
def del1(self):
num2 = str(e4.get())
with open('student_infor.txt', 'r') as f:
lines = f.readlines()
with open('student_infor.txt', 'w') as f_w:
for line in lines:
if num2 in line:
continue
f_w.write(line)
#修改学生信息
class PageThree(tk.Frame):
def __init__(self, parent, root):
super().__init__(parent)
tk.Label(self, text="修改学生信息", font=LARGE_FONT).pack(pady=100)
ft3 = tkFont.Font(size=14)
ft4 = tkFont.Font(size=12)
Label(self, text='请输入你要修改的学生学号：',font=ft3).pack(side=TOP)
self.e5 = StringVar()
Entry(self, width=30,textvariable=self.e5,font=ft3,bg='Ivory').pack(side=TOP)
Label(self, text='学生姓名：',font=ft3).pack(side=TOP)
self.e6 = StringVar()
Entry(self, width=30,textvariable=self.e6,font=ft3,bg='Ivory').pack(side=TOP)
Label(self, text='学生成绩：',font=ft3).pack(side=TOP)
self.e7 = StringVar()
Entry(self, width=30,textvariable=self.e7,font=ft3,bg='Ivory').pack(side=TOP)
Button(self, text="确定修改", width=8,font=ft4,command=self.modify).pack(pady=20)
Button(self, text="返回首页", width=8,font=ft4,command=lambda: root.show_frame(StartPage)).pack()
def modify(self):
num3 = str(self.e5.get())
name3 = str(self.e6.get())
score3 = str(self.e7.get())
with open('student_infor.txt', 'r') as r_w:
lines1 = r_w.readlines()
with open('student_infor.txt', 'w') as rr_w:
for line1 in lines1:
if num3 in line1:
rr_w.write(num3+' '+name3+' '+score3+'\n')
continue
rr_w.write(line1)
#查询学生成绩
class PageFour(tk.Frame):
def __init__(self, parent, root):
super().__init__(parent)
label = tk.Label(self, text="查询学生成绩", font=LARGE_FONT)
label.pack(pady=100)
tree_data = ttk.Treeview()
ft4 = tkFont.Font(size=12)
#滚动条
scro = Scrollbar(self)
scro.pack(side=RIGHT, fill=Y)
lista = Listbox(self,yscrollcommand=scro.set,width=50)
f = open('student_infor.txt','r')
text = (" %-16s%-16s%-16s"%("学号","姓名","成绩"))
li = []
for i in f.readlines():
j = i.split(' ')
j[2] = j[2].replace('\n','')
li.append(j)
li.sort(key=lambda x: x[2],reverse=False)
for i in li:
text1 = (" %-16s%-16s%-16s"%(i[0],i[1],i[2]))
lista.insert(0, text1)
f.close()
lista.insert(0, text)
lista.pack()
Button(self, text="返回首页", width=8,font=ft4,command=lambda: root.show_frame(StartPage)).pack(pady=40)
if __name__ == '__main__':
# 实例化Application
app = Application()
# 主消息循环:
app.mainloop()
