Question

所以我正在做一个用Python编写的程序，它应该做的是显示一个带有按钮的GUI来打开一个图像文件，然后你应该能够看到那些图像，平移和放大它们。

到目前为止我的代码：

import Tkinter as tk
from PIL import Image, ImageTk
import os, tkFileDialog


button_flag = True

def click():
    global button_flag
    if button_flag:
        button1.config(bg="white")
        button_flag = False
    else:
        button1.config(bg="green")
        button_flag = True

root = tk.Tk()

frame1 = tk.Frame(root)
frame1.pack(side=tk.TOP, fill=tk.X)

image1 = Image.open(tkFileDialog.askopenfilename())

button1 = tk.Button(frame1, compound=tk.TOP, width=155, height=55, image=image1, text="optional tet", bg='green', command=click)
button1.pack(side=tk.LEFT, padx=2, pady=2)

button1.image = image1

root.mainloop()

但是当我选择图像时，它会给我一个错误：

 Traceback (most recent call last):
  File "C:\Users\Joao\Desktop\test3", line 24, in <module>
button1 = tk.Button(frame1, compound=tk.TOP, width=155, height=55, image=image1, text="optional tet", bg='green', command=click)
  File "C:\Python27\lib\lib-tk\Tkinter.py", line 2106, in __init__
Widget.__init__(self, master, 'button', cnf, kw)
  File "C:\Python27\lib\lib-tk\Tkinter.py", line 2036, in __init__
(widgetName, self._w) + extra + self._options(cnf))
TclError: image "<PIL.BmpImagePlugin.BmpImageFile image mode=P size=1086x1580 at 0x317A648>" doesn't exist

另一件事是我无法在点击打开图像（来自tkFileDialog.askopenfilename()）然后显示完整图像时配置按钮，而不仅仅是适合gui尺寸的缩放版本。 / p>

我搜索了那些但不真的有帮助：

Answer 1

button命令需要PhotoImage类的实例。它无法直接显示PIL对象。将您的代码更改为：

pil_image = Image.open(tkFileDialog.askopenfilename())
image1 = ImageTk.PhotoImage(pil_image)

Tkinter GUI，打开文件..按钮和BMP图像..显示所选文件时出错

1 个答案: