我想将用户在tkinter的输入字段中输入的值从一类导入到另一类

Question

我在tkinter中建立了一个考勤管理系统，我需要将在一个类的输入字段中输入的数据导入另一个类。 我在google上搜索了相同的内容，但是当我在引用现有的代码中实现错误时，没有一种方法起作用 “ Student_Records”没有属性“ entry1”

仅作为背景知识，“ Student_Records”是我的代码的第4类，而“ search_by_roll_no”是我需要的“ Student_Records”类中输入字段内容的第5类。请提供解决方案...

没有尝试按对象访问值，而是尝试了几乎所有可以找到的东西。 下面只是给出错误的代码片段。

import tkinter as tk                # python 3
from tkinter import font as tkfont # python 3
from tkinter import *
import sqlite3
import os
import sys
from PIL import Image, ImageTk


class SampleApp(tk.Tk):

    def __init__(self, *args, **kwargs):
        tk.Tk.__init__(self, *args, **kwargs)

        self.title_font = tkfont.Font(family='times new roman', size=24,                                 weight="bold", slant="italic")

        # the container is where we'll stack a bunch of frames
        # on top of each other, then the one we want visible
        # will be raised above the others
        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 = {}
        for F in (StartPage, Student_Records, roll_no_search):
            page_name = F.__name__
            frame = F(parent=container, controller=self)
            self.frames[page_name] = frame

            # put all of the pages in the same location;
            # the one on the top of the stacking order
            # will be the one that is visible.
            frame.grid(row=0, column=0, sticky="nsew")
            frame.config(background='gainsboro')

        self.show_frame("StartPage")

    def show_frame(self, page_name):
        '''Show a frame for the given page name'''
        frame = self.frames[page_name]
        frame.tkraise()

    def get_page(self, page_name):
        for page in self.frames.values():
            if str(page.__class__.__name__) == page_name:
                return page
        return None



class StartPage(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        self.controller = controller
        label = tk.Label(self, text="Student Records",     font=controller.title_font)
        label.pack(side="top", fill="x", pady=10)



        label1 = tk.Label(self, text="Search",     font=controller.title_font)
        label1.pack(side="top", fill="x", pady=10)

        button3 = tk.Button(self, text="Student Records",font=('times new roman',16,'bold'),
                        command=lambda: controller.show_frame("Student_Records"))

        button3.pack(fill='x',pady=10)



class Student_Records(tk.Frame):

    def __init__(self,parent,controller):
        tk.Frame.__init__(self,parent)
        self.controller=controller
        label = tk.Label(self,text="Search Student Records", font=controller.title_font)
        label.pack(side="top", fill="x",pady=10)

        b1=tk.Button(self, text="run",
                     command=lambda:self.make_widget(controller))
        b1.pack()


    def make_widget(self,controller):

        label1=tk.Label(self,text="Roll No", font=('times new roman',14,'bold'))
        label1.place(x=150,y=70)

        some_input = "test input widget"
        entry1=tk.Entry(self, textvariable=some_input, width=8)
        entry1.pack(side="top",pady=10)

        e1_var=tk.StringVar(entry1.get())

        button1=tk.Button(self, text="Search By Roll No", font=('times new roman',16,'bold'),
                          command=lambda:controller.show_frame("roll_no_search"))
        button1.pack(fill='x', side="top",pady=10)



class roll_no_search(tk.Frame):
    def __init__(self,parent,controller):

        tk.Frame.__init__(self,parent)
        self.controller=controller

        label = tk.Label(self,text="Search Student Records", font=controller.title_font)
        label.pack(side="top", fill="x",pady=10)

        b2 = tk.Button(self, text = "print",
                       command = lambda: self.print_it())
        b2.pack()

    def print_it(self):
        student_records = self.controller.get_page("Student_Records")
        value = student_records.entry1.get()
        print (value)



if __name__ == "__main__":
    app = SampleApp()
    app.title('Student Records')
    app.geometry('600x600')
    app.mainloop()

我收到的错误是： 'Student_Records'对象没有属性'entry1'