html5 - How to change the opacity (alpha, transparency) of an element in a canvas element after it h

html5 - How to change the opacity (alpha, transparency) of an element in a canvas element after it h

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日期:2025-11-15
Using the HTML5 element, I would like to load an image file (PNG, JPEG, etc.), draw it to the canvas completely transparently, and then fade it in. I have figured out ......看更多