先来看一下该方法的说明
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create_image(position, **options) [#]draws an image on the canvas.positionimage position, given as two coordinates.**optionsimage options.activeimage=anchor=where to place the image relative to the given position. default is center.disabledimage=image=the image object. this should be a photoimage or bitmapimage, or a compatible object (such as the pil photoimage). the application must keep a reference to the image object.state=item state. one of normal, disabled, or hidden.tags=a tag to attach to this item, or a tuple containing multiple tags.returns:the item id. |
关于image有两个重要的点要注意，一个是格式，第二是要保持持续引用
the image object. this should be a
1.this should be a photoimage or bitmapimage, or a compatible object (such as the pil photoimage).
2.the application must keep a reference to the image object.
因此代码应该这样写，并且变量im应该是全局变量
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image = image.open("img.jpg") im = imagetk.photoimage(image) canvas.create_image(300,50,image = im) |
但如果我就是想要在方法里调用怎么办？
那么可以提前声明全局变量
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image = noneim = none |
之后在方法里使用global来声明变量为全局变量
即：
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def method(): global image global im image = image.open("img.jpg") im = imagetk.photoimage(image) ... |
以上这篇python tkinter canvas 显示图片的示例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/sailist/article/details/79459185
