我在向 tkinter 框架添加文本框時遇到問題，我可以顯示標簽，但無法顯示文本框

Question

在我的注冊頁面 class 下方，我添加了所有必要的標簽，但沒有顯示文本框，我將其命名為 nameText。

其他一切正常，該程序的目的是將姓名、姓氏、年齡、單元格編號和學位名稱添加到數據庫中。 我決定先完成 GUI，然后從那里開始在后端工作。

    from tkinter import *
    import tkinter as tk
    
    
    class Students (tk.Tk):
        def __init__ (self, *args, **kwargs):
            tk.Tk.__init__(self, *args, **kwargs)
            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 (displayMainMenu, RegisterPAGE, viewPage):
                frame = F (container, self)
                self.frames[F] = frame
                frame.grid(row = 0, column = 0, sticky = "nsew")
            self.show_frame(displayMainMenu)
            
        def show_frame (self, cont):
            frame = self.frames[cont]
            frame.tkraise()
            
            
    class displayMainMenu (tk.Frame):
        def __init__ (self, parent, controller):
            tk.Frame.__init__ (self, parent)
            label = tk.Label(self, text = "MENU")
            label.pack(pady = 10, padx = 10)
            
            registerButton = tk.Button(self, text = "Register Student", command=lambda: controller.show_frame(RegisterPAGE))
            registerButton.pack()
            viewButton = tk.Button(self, text = "View Registered Student", command=lambda: controller.show_frame(viewPage))
            viewButton.pack()
            exitButton = tk.Button(self, text = "EXIT", command=lambda: controller.show_frame(RegisterPage))
            exitButton.pack()
            
    class RegisterPAGE (tk.Frame):
    
       def __init__(self, parent, controller):
        tk.Frame. __init__(self, parent)
        
        label = tk.Label(self, text = "Student name")
        label.pack(pady = 10, padx = 10)
        nameText = tk.Entry(self, bd=5)
        label.pack(pady = 10, padx = 10)
        label = tk.Label(self, text = "Student surname")
        label.pack(pady = 10, padx = 10)
        label = tk.Label(self, text = "Student age")
        label.pack(pady = 10, padx = 10)
        label = tk.Label(self, text = "Student cell phone number")
        label.pack(pady = 10, padx = 10)
        label = tk.Label(self, text = "Which degree do you want to study:")
        label.pack(pady = 10, padx = 10)
        
        backButton = tk.Button(self, text = "Back", command=lambda: controller.show_frame(displayMainMenu))
        backButton.pack()
        
     
    class viewPage (tk.Frame):
    
       def __init__(self, parent, controller):
        tk.Frame. __init__(self, parent)
        label = tk.Label(self, text = "View Registered Students")
        label.pack(pady = 10, padx = 10)
        
        backButton = tk.Button(self, text = "Back", command=lambda: controller.show_frame(displayMainMenu))
        backButton.pack()
        
            
    app = Students ()
    app.mainloop()

Answer 1

好像你沒有打包條目。

    nameText.pack(pady = x, padx = y)