在 Python 上使用 Tkinter 单击按钮后如何返回上一帧？答案

【问题标题】：How to go back to previous frame after button click using Tkinter on Python?在 Python 上使用 Tkinter 单击按钮后如何返回上一帧？
【发布时间】：2020-05-08 14:10:40
【问题描述】：

我想要一个带有 2 个按钮的 GUI。单击任一按钮后，我希望看到一个新的 GUI，其中有一个按钮可以再次使用这两个按钮返回主 GUI。

这就是我现在所拥有的，但“返回”按钮没有任何作用。如何使用 tkinter 回到我的第一页？

from tkinter import *


root = Tk()
root.title('Frames')
root.geometry('500x250+300+300')

# Position frame
frame = LabelFrame(root, text='Such a dilemma', padx=25, pady=25)
frame.pack(padx=10, pady=50)

# What do the buttons do
def bad():
    frame.grid_forget()
    b.grid_forget()
    b2.grid_forget()
    slechtekeuze = Label(frame, text='Bad choice')
    slechtekeuze.grid(row=0, column=0, columnspan=2)

    # Option to got back
    homepage = Button(frame, text='Go back', command=back)
    homepage.grid(row=1, column=0, columnspan=2, pady=10)

def good():
    frame.grid_forget()
    b.grid_forget()
    b2.grid_forget()
    slechtekeuze = Label(frame, text='Good choice')
    slechtekeuze.grid(row=0, column=0, columnspan=2)

    # Option to go back
    homepage = Button(frame, text='Terug', command=back)
    homepage.grid(row=1, column=0, columnspan=2, pady=10)


def back():
    frame.grid_forget()
    frame1 = LabelFrame(root, text='Such a dilemma', padx=25, pady=25)
    frame1.pack(padx=10, pady=50)

    b = Button(frame1, text="Don't click!!!", fg='red', command=bad)
    b2 = Button(frame1, text='Click!!!', fg='green', command=good)

    b.grid(row=0, column=0, padx=3)
    b2.grid(row=0, column=1, padx=3)

# Create the buttons and put them in the frame
b = Button(frame, text="Don't click!!!", fg='red', command=bad)
b2 = Button(frame, text='Click!!!', fg='green', command=good)

b.grid(row=0, column=0, padx=3)
b2.grid(row=0, column=1, padx=3)

root.mainloop()

【问题讨论】：

标签： python tkinter

【解决方案1】：

它确实有效，稍微扩大你的屏幕。框架在下面添加。

我已尽可能按照您的风格对其进行了编辑：

from tkinter import *


root = Tk()
root.title('Frames')
root.geometry('500x250+300+300')

# Position frame
frame = LabelFrame(root, text='Such a dilemma', padx=25, pady=25)
frame.pack(padx=10, pady=50)

# What do the buttons do
def bad(frame):
    frame.destroy()
    frame = LabelFrame(root, text='Such a dilemma', padx=25, pady=25)
    frame.pack(padx=10, pady=50)
    slechtekeuze = Label(frame, text='Bad choice')
    slechtekeuze.grid(row=0, column=0, columnspan=2)

    # Option to got back
    homepage = Button(frame, text='Go back', command=lambda:back(frame))
    homepage.grid(row=1, column=0, columnspan=2, pady=10)

def good(frame):
    frame.destroy()
    frame = LabelFrame(root, text='Such a dilemma', padx=25, pady=25)
    frame.pack(padx=10, pady=50)
    slechtekeuze = Label(frame, text='Good choice')
    slechtekeuze.grid(row=0, column=0, columnspan=2)

    # Option to go back
    homepage = Button(frame, text='Terug', command=lambda:back(frame))
    homepage.grid(row=1, column=0, columnspan=2, pady=10)


def back(frame):
    frame.destroy()
    frame = LabelFrame(root, text='Such a dilemma', padx=25, pady=25)
    frame.pack(padx=10, pady=50)

    b = Button(frame, text="Don't click!!!", fg='red', command=lambda:bad(frame))
    b2 = Button(frame, text='Click!!!', fg='green', command=lambda:good(frame))

    b.grid(row=0, column=0, padx=3)
    b2.grid(row=0, column=1, padx=3)

# Create the buttons and put them in the frame
b = Button(frame, text="Don't click!!!", fg='red', command=lambda:bad(frame))
b2 = Button(frame, text='Click!!!', fg='green', command=lambda:good(frame))

b.grid(row=0, column=0, padx=3)
b2.grid(row=0, column=1, padx=3)

root.mainloop()

【讨论】：