基本是对的,就是差距没有那么大(~4倍),cg自己验证的回答是”The experiment confirms the comment. I created a pure white image of size 500x500 pixels and saved it in both PNG and JPG formats. The PNG version is 1,837 bytes, while the JPG version is 4,723 bytes. This demonstrates that for an image with strong repetition (like a pure white image), the PNG format indeed offers a higher compression ratio compared to JPG.“