Question

我无法为我的生活解决为什么这不起作用。我正在使用TKinter在Python中显示图像。我到目前为止编写的代码如下所示：

from tkinter import *
from tkinter import messagebox

def unlock():
    root.withdraw()


    def logout():
        inside.destroy()
        root.deiconify()

    #######################
    ###                 ###
    ###  unlock Form    ###
    ###                 ###
    #######################


    inside = Tk()
    inside.geometry("576x576")
    inside.title("SAFE CRACKER")
    # LABELS, Textboxes and Buttons
    imageInside = PhotoImage(file = "images/inside.gif")
    imageLabel = Label(inside,image = imageInside).grid(row =1, columnspan = 2)
    label = Label(inside, text="Safe Cracker", font = ("Arial",16)).grid(row = 0, columnspan = 2)
    exitButton = Button(inside, text = "Exit", width = 15, command = logout )
    exitButton.grid(row = 3, column = 0,padx = 10, pady = 10)



#######################
###                 ###
###    Main Form    ###
###                 ###
#######################


root = Tk()
root.geometry("430x450")
root.title("SAFE CRACKER")
# LABELS, Textboxes and Buttons
label = Label(root, text="Safe Cracker", font = ("Arial",16)).grid(row = 0, columnspan = 2)
imageSafe = PhotoImage(file = "images/safe.gif")
imageLabel = Label(root,image = imageSafe).grid(row =1, columnspan = 2)
label = Label(root, text = "Enter the code", font = ("Arial",12)).grid(row  = 2, column = 0)
unlockCode = Entry(root, width = 30)
unlockCode.grid(row = 2, column = 1,padx = 10, pady = 10)
exitButton = Button(root, text = "Exit", width = 15, command = exit).grid(row = 3, column = 0,padx = 10, pady = 10)
enterButton = Button(root, text = "Enter the VAULT", width = 15, command = unlock).grid(row = 3, column = 1,padx = 10, pady = 10)

目前代码并没有做太多，但这是我正在努力的事情。当我运行该程序时，它将显示一个安全图片（很棒），当我点击按钮时，它会移动到下一个表格。

image of safe working

在新表格上，图像，标签和按钮不会显示，但是，当图像代码被删除时，它们全部都可以正常工作。

最初我想过将根表单放在一个函数中，但是，每当我将这段代码放在一个函数中时，它都无法加载图像（ahhhh）。这些图像可以放在功能中吗？

Answer 1

您需要保留对照片的引用。

imageInside = PhotoImage(file = "images/inside.gif")
imageLabel = Label(inside,image = imageInside)
imageLabel.grid(row =1, columnspan = 2)
imageLabel.photo_ref = imageInside # keep a reference!

Answer 2

感谢您的帮助。

我可以确认这是有效的，这是代码。

from tkinter import *
from tkinter import messagebox

def unlock():
    root.withdraw()


    def logout():
        inside.destroy()
        root.deiconify()

    #######################
    ###                 ###
    ###  unlock Form    ###
    ###                 ###
    #######################


    inside = Toplevel()
    inside.geometry("576x576")
    inside.title("SAFE CRACKER")
    # LABELS, Textboxes and Buttons
    imageInside = PhotoImage(file = "images/inside.gif")
    imageLabel = Label(inside,image = imageInside)
    imageLabel.grid(row =1, columnspan = 2)
    imageLabel.photo_ref = imageInside
    label = Label(inside, text="Safe Cracker", font = ("Arial",16)).grid(row = 0, columnspan = 2)
    exitButton = Button(inside, text = "Exit", width = 15, command = logout )
    exitButton.grid(row = 3, column = 0,padx = 10, pady = 10)



#######################
###                 ###
###    Main Form    ###
###                 ###
#######################


root = Tk()
root.geometry("430x450")
root.title("SAFE CRACKER")
# LABELS, Textboxes and Buttons
label = Label(root, text="Safe Cracker", font = ("Arial",16)).grid(row = 0, columnspan = 2)
imageSafe = PhotoImage(file = "images/safe.gif")
imageLabel = Label(root,image = imageSafe).grid(row =1, columnspan = 2)
label = Label(root, text = "Enter the code", font = ("Arial",12)).grid(row  = 2, column = 0)
unlockCode = Entry(root, width = 30)
unlockCode.grid(row = 2, column = 1,padx = 10, pady = 10)
exitButton = Button(root, text = "Exit", width = 15, command = exit).grid(row = 3, column = 0,padx = 10, pady = 10)
enterButton = Button(root, text = "Enter the VAULT", width = 15, command = unlock).grid(row = 3, column = 1,padx = 10, pady = 10)

tkinter不在表单上显示图像

2 个答案: