带图像的简单GUI [英] Simple GUI with images

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本文介绍了带图像的简单GUI的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我正在尝试在我的简单GUI上显示一些卡片,但它没有显示出来。

I'm trying to display some cards on my simple GUI, but it's not showing up.

我上传了一个包含我要上传的.gif的工作文件,代码很接近但不对。
http://www.filedropper.com/cardgameproblem 大小:0Kb,类型:.zip

I've uploaded a working file with the .gif I want to upload, and the code is close but not right. http://www.filedropper.com/cardgameproblem Size: 0Kb, Type:.zip


  • 包含1 .py和1 .gif

要看的线路从257-266开始。我知道这只是一个小错误,但我看不到它。

The lines to look at start at 257-266. I know it's just a minor error, but I can't see it.

请帮助

推荐答案

经过一些修补,我发现当存储在GUI的变量中时图像被正确显示,即使用 self

After some tinkering, I found out that the image is properly displayed when stored in a variable of the GUI, i.e. using self

self.gif1 = PhotoImage(file='1.gif')
self.canvas.create_image(0, 0, image=self.gif1, anchor=NW)

我不明白为什么,但这是有效的,而命名变量只需 gif1 (或任何其他名称),而不是 self ,则不然。在您的代码和最小示例中都进行了测试。

I have no idea why, but This works, while naming the variable just gif1 (or any other name), without self, does not. Tested both in your code and in a minimum example.

更新:正如@Bryan指出的,垃圾收集器处理 PhotoImage __ init __ 完成时的实例。您必须保留对构造函数范围之外的实例的引用,例如使用 self global 。鉴于手头的问题,最好创建一个 dict ,使用卡片的名称作为键存储图像。

Update: As @Bryan pointed out, the garbage collector disposes the PhotoImage instance when __init__ finishes. You have to keep a reference to the instance beyond the scope of the constructor, e.g. using self, or global. Given the problem at hand, it might be best to create a dict, storing the images using the names of the cards as keys.

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