Question

请问为什么在我的Python中使用 canvas 不显示图片？

def add_background(form):
canvas = tk.Canvas(form,)
image = Image.open('background.jpg')
background = ImageTk.PhotoImage(image)
canvas.create_image(0, 0, image=background, anchor="nw")
canvas.place(x=0, y=0, anchor="nw")
#form.mainloop()
def main():
form = tk.Tk()
form.geometry(300,400)
add_background(form)
form.mainloop()

if __name__ == "__main__":
main()

Answer 1

搜了下，有人说是因为image被垃圾回收了
background = 后面加这句
form.a = background
这个a可以是任意的标识符