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I found the solution to the problem. When src already has content, it will not be loaded again
You can also set the value of data-isload on img. You can use isload to determine whether it has been loaded.
Just paste the code
.. It makes sense to post the code directly
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
You can also set the value of data-isload on img. You can use isload to determine whether it has been loaded.
Just paste the code
.. It makes sense to post the code directly