for example:
https://www.zhihu.com/questio.
I examined it and found that the picture I can see is different from the picture box that is not in the view area, and it will only be displayed when scrolling into the view area.
doesn"t know how this preloading is implemented, and what to do if you want to cancel it?
this is not preloading, this is lazy loading.
preloading is to load all resources in place at once in advance, and lazy loading will only be loaded when needed.
there will be differences in implementation. Look for your own information.
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