Tkinter 中的 iconphoto() 方法Python

iconphoto()方法用于设置任何 tkinter/toplevel 窗口的标题栏图标。但是要设置任何图像作为标题栏的图标，图像应该是PhotoImage类的对象。
句法：

iconphoto(self, default = False, *args)

设置图标图像的步骤 -

from tkinter import Tk
master = Tk()

photo = PhotoImage(file = "Any image file")
master.iconphoto(False, photo)

根据通过 args 传递的命名照片图像设置此窗口的标题栏图标。如果默认为True ，这也适用于所有未来创建的顶层。图像中的数据在调用时被作为快照。如果稍后更改图像，这不会反映在标题栏图标中。该函数还将提供的图标缩放到适当的大小。
代码 #1：当提供 PhotoImage 时。

Python3

# Importing Tkinter module
from tkinter import *
from tkinter.ttk import *
  
# Creating master Tkinter window
master = Tk()
  
# Creating object of photoimage class
# Image should be in the same folder
# in which script is saved
p1 = PhotoImage(file = 'info.png')
  
# Setting icon of master window
master.iconphoto(False, p1)
  
# Creating button
b = Button(master, text = 'Click me !')
b.pack(side = TOP)
  
# Infinite loop can be terminated by
# keyboard or mouse interrupt
# or by any predefined function (destroy())
mainloop()

输出：

例外：如果您直接提供图像而不是 PhotoImage 对象，则会显示以下错误。
代码 #2：当没有提供 PhotoImage 对象时。

Python3

# Importing Tkinter module
from tkinter import *
from tkinter.ttk import *
  
# Creating master Tkinter window
master = Tk()
  
# Setting icon of master window
master.iconphoto(False, 'info.png')
  
# Creating button
b = Button(master, text = 'Click me !')
b.pack(side = TOP)
  
# Infinite loop can be terminated by
# keyboard or mouse interrupt
# or by any predefined function (destroy())
mainloop()

输出：

Traceback (most recent call last):
  File "C:\Users\Admin\Documents\GUI_python\geeks.py", line 14, in 
    master.iconphoto(False, 'info.png')
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python37-32\lib\tkinter\__init__.py", line 1910, in wm_iconphoto
    self.tk.call('wm', 'iconphoto', self._w, *args)
_tkinter.TclError: can't use "info.png" as iconphoto: not a photo image