全屏显示时如何使标签或框架展开为相对大小

如何解决全屏显示时如何使标签或框架展开为相对大小

我正在制作啤酒描述的GUI，除了几件事外，其他所有东西都按我的方式工作。当我单击一个按钮时，它会显示一个页面，其中包含啤酒的图片以及以Label形式显示的啤酒说明。当我全屏显示时，文本所在的正方形相对于屏幕会扩大，但是文本保持相同大小。全屏显示时，如何使文本填充标签，而不是其创建的所有多余空间？我尝试了.pack（fill ='both'，expand = True）但它似乎没有用。如果有人知道如何对照片做同样的事情，我也将代码简化为只有两个按钮。

import random
import tkinter as tk
from PIL import ImageTk,Image
import sys

American_Pale_Ale = """\nAmerican craft beer movement. American Pale ales are golden to deep amber in color,medium-bodied,and have a moderate-to-high hop flavor. Some favorites include Sierra Nevada or Dale's Pale Ale from Oskar Blues. If there were ever a style most representative of classic American craft beer—this would be it. It's one of the most food-friendly beers,so try it with chicken and fish as well as chili or a cheese plate. """
HEIGHT = 700
WIDTH = 1200
BLUE = '#146F80'
GRAY = '#4A4A4A'

root = tk.Tk()
root.title("Beer App")
root.geometry(f'{WIDTH}x{HEIGHT}+300+150')

# Gets the requested values of the height and width.
windowWidth = root.winfo_reqwidth()
windowHeight = root.winfo_reqheight()

# Gets both half the screen width/height and window width/height
positionRight = int(root.winfo_screenwidth() / 4 - windowWidth / 1)
positionDown = int(root.winfo_screenheight() / 3.5 - windowHeight / 1)

# Positions the window in the center of the page.
root.geometry("+{}+{}".format(positionRight,positionDown))

# make the menu occupy all available width
root.grid_columnconfigure(0,weight=1)

# make the main display container occupy all available height
root.grid_rowconfigure(1,weight=1)


def change_page(name):
    global pages,current
    if current:
        current.place_forget()

    current = pages[name][0]
    current.place(**pages[name][1])


def menu():
    bar = tk.Frame(root,bg=GRAY)
    bar.grid(sticky='we')
    # bar.grid_columnconfigure(0,weight=1)

    opts = dict(bg="#5C665B",fg="black",font=("AR JULIAN",10),activebackground=BLUE,relief='raised',bd=3)
    pads = dict(padx=2,pady=16,ipadx=3,ipady=6)

    apa_btn = tk.Button(bar,text="American Pale Ale",**opts)
    apa_btn.bind("<Button-1>",lambda e: change_page('beer1'))
    apa_btn.grid(sticky='w',**pads)

    menu_btn = tk.Button(bar,text="Home",**opts)
    menu_btn.bind("<Button-1>",lambda e: change_page('main'))
    menu_btn.grid(row=0,column=12,**pads)


def main(master):
    global images
    image = Image.open(r"C:\Users\name\Pictures\PNG\glasses1.png")
    image = image.resize((1200,650),Image.ANTIALIAS)
    images['mainpic'] = ImageTk.PhotoImage(image,name='mainpic')
    tk.Label(display,image='mainpic',bg=BLUE).place(relx=0,rely=0,relheight=1,relwidth=1)

    main_frame = tk.Frame(master,bg=GRAY)

    welcome_lbl = tk.Label(main_frame,wraplength=680,text='welcome',font=("Gadui",24),bg=GRAY,fg="white",relief='ridge',bd=7)
    welcome_lbl.pack(fill='both',expand=True)

    return main_frame


def beer1(master):
    global images
    main_frame = tk.Frame(master,bg=BLUE)

    image = Image.open(r"C:\Users\name\Pictures\PNG\american pale ale.png")
    images['apa'] = ImageTk.PhotoImage(image,name='apa')
    tk.Label(main_frame,image='apa',bg=BLUE).place(relx=-0.08,rely=0.2,relheight=0.7,relwidth=0.5)

    beer_desc_lbl = tk.Label(main_frame,text=American_Pale_Ale,justify=tk.LEFT,font=('Gadugi',18),fg='white')
    beer_desc_lbl.config(anchor='nw',padx=10)
    beer_desc_lbl.place(relx=0.4,rely=0.15,relwidth=0.58)

    return main_frame


def close(event):
    sys.exit()  # if you want to exit the entire thing


# init menu
menu()

# this serves as the master for all content
display = tk.Frame(root,bg=BLUE)
display.grid(sticky='nswe')

# used to keep image references alive
images = dict()

# a reference to every page and it's placement
pages = dict(
    main=(main(display),dict(relx=0.2,rely=0.25,relheight=0.5,relwidth=0.6)),beer1=(beer1(display),dict(x=0,y=0,relwidth=1)),)

# a reference to the current page
current = None

# init main page
change_page('main')

# used to exit the program
root.bind('<Escape>',close)

root.mainloop()