為什么這個pythontkinter函式不使用給定的影像？[復制]

我撰寫了這個小 tkinter 程式，但如果你選擇并放置它，它不會使用給定的圖片。這是代碼：

# Imports

import tkinter as tk
from PIL import ImageTk, Image

# Vars

mainbgc = "#2c2c2c"
label_mainleftc = "#3c3c3c"
label_maintopc = "#4c4c4c"
label_leftsel = "#5c5c5c"

# Tk

root = tk.Tk()
root.title("Zilius")
root.iconbitmap("zilius128.ico")
screen_width = round(root.winfo_screenwidth() / 2)
screen_height = round(root.winfo_screenheight() / 2)
root.geometry(f"{screen_width}x{screen_height}")
root.configure(bg=mainbgc)


cable = False
computer = False
switch = False
count = 0

def placesmth(x, y, img):
    image_png_placesmth = Image.open(img).resize((60, 60))
    photo_png_placesmth = ImageTk.PhotoImage(image=image_png_placesmth)
    addsmth = tk.Label(root, image=photo_png_placesmth)
    addsmth.place(x=x, y=y)

def getorigin(eventorigin):
    global x, y
    x = eventorigin.x
    y = eventorigin.y
    if x >= 75 and y >= 45:
        if computer == True:
            placesmth(x, y, "png_leftcomputer.png")
        if cable == True:
            print(f"Cable {x, y}")
        if switch == True:
            placesmth(x, y, "png_leftswitch.png")

root.bind("<Button 1>", getorigin)

def button_run():
    print("Runned")

def changesel_cable():
    global computer
    global switch
    button_png_leftcable.configure(bg=label_leftsel)
    button_png_leftswitch.configure(bg=label_mainleftc)
    button_png_leftcomputer.configure(bg=label_mainleftc)
    computer = False
    switch = False

def changesel_computer():
    global cable
    global switch
    button_png_leftcomputer.configure(bg=label_leftsel)
    button_png_leftswitch.configure(bg=label_mainleftc)
    button_png_leftcable.configure(bg=label_mainleftc)
    switch = False
    cable = False

def changesel_switch():
    global cable
    global computer
    button_png_leftswitch.configure(bg=label_leftsel)
    button_png_leftcomputer.configure(bg=label_mainleftc)
    button_png_leftcable.configure(bg=label_mainleftc)
    computer = False
    cable = False

def button_leftcable():
    global cable
    cable = True
    changesel_cable()

def button_leftcomputer():
    global computer
    computer = True
    changesel_computer()

def button_leftswitch():
    global switch
    switch = True
    changesel_switch()


label_mainleft = tk.Label(bg=label_mainleftc)
label_mainleft.place(x=0, y=0, height=int(round(root.winfo_screenheight())), width=75)
label_maintop = tk.Label(bg=label_maintopc)
label_maintop.place(x=0, y=0, width=int(round(root.winfo_screenwidth())), height=40)

image_png_runbutton = Image.open("png_runbutton.png").resize((30, 30))
photo_png_runbutton = ImageTk.PhotoImage(image=image_png_runbutton)
button_png_runbutton = tk.Button(root, image=photo_png_runbutton, bg=label_maintopc, activebackground=label_maintopc, borderwidth=-1, command=button_run)
button_png_runbutton.place(x=50,y=4)

image_png_leftcable = Image.open("png_leftcable.png").resize((60, 60))
photo_png_leftcable = ImageTk.PhotoImage(image=image_png_leftcable)
button_png_leftcable = tk.Button(root, image=photo_png_leftcable, bg=label_mainleftc, activebackground=label_mainleftc, borderwidth=-1, command=button_leftcable)
button_png_leftcable.place(x=5,y=40)

image_png_leftcomputer = Image.open("png_leftcomputer.png").resize((60, 60))
photo_png_leftcomputer = ImageTk.PhotoImage(image=image_png_leftcomputer)
button_png_leftcomputer = tk.Button(root, image=photo_png_leftcomputer, bg=label_mainleftc, activebackground=label_mainleftc, borderwidth=-1, command=button_leftcomputer)
button_png_leftcomputer.place(x=5,y=105)

image_png_leftswitch = Image.open("png_leftswitch.png").resize((60, 60))
photo_png_leftswitch = ImageTk.PhotoImage(image=image_png_leftswitch)
button_png_leftswitch = tk.Button(root, image=photo_png_leftswitch, bg=label_mainleftc, activebackground=label_mainleftc, borderwidth=-1, command=button_leftswitch)
button_png_leftswitch.place(x=5,y=170)

root.mainloop()

這是應該使用給定影像放置標簽的函式：

def placesmth(x, y, img):
    image_png_placesmth = Image.open(img).resize((60, 60))
    photo_png_placesmth = ImageTk.PhotoImage(image=image_png_placesmth)
    addsmth = tk.Label(root, image=photo_png_placesmth)
    addsmth.place(x=x, y=y)

Placesmth 函式應該用給定的影像放置一個標簽，但實際情況是，該函式只是放置一個沒有影像的標簽 - 只是一個框。有人可以告訴我如何解決這個問題以及為什么會這樣嗎？謝謝！

uj5u.com熱心網友回復：

試試這個它會作業

def placesmth(x, y, img):
    image_png_placesmth = Image.open(img).resize((60, 60))
    photo_png_placesmth = ImageTk.PhotoImage(image=image_png_placesmth)
    addsmth = tk.Label(root, image=photo_png_placesmth)
    addsmth.image = photo_png_placesmth
    addsmth.place(x=x, y=y)

我不知道，但這是一個錯誤或其他任何東西。我也遇到了同樣的問題。

要解決此問題，您只需將此影像保存在標簽類中。

addsmth.imageaddsmth.img=photo_png_placesmth您將其更改為oraddsmth.aaa=photo_png_placesmth或之類的任何東西addsmth.bbb=photo_png_placesmth，它將在所有情況下都有效。

您必須addsmth.image在代碼中添加它會阻止垃圾收集器中的影像。

標籤：Python tkinter

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