AJAX Thumbnail Rebuild allows you to rebuild all thumbnails on your site.
AJAX缩略图重建允许您重建站点上的所有缩略图。
There are already some plugins available for this, but they have one thing in common: All thumbnails are rebuilt in a single step.
已经有一些可用的插件，但是它们有一个共同点：所有缩略图都可以在一个步骤中重建。
This works fine when you don’t have that many photos on your site.
当您的网站上没有那么多照片时，这种方法就很好用。
When you have a lot of full-size photos, the script on the server side takes a long time to run.
当您有很多全尺寸照片时，服务器端的脚本需要很长时间才能运行。
Unfortunately the time a script is allowed to run is limited, which sets an upper limit to the number of thumbnails you can regenerate.
不幸的是，允许脚本运行的时间是有限的，这为可以重新生成的缩略图数设置了上限。
This number depends on the server configuration and the computing power your server has available.
此数字取决于服务器配置和服务器可用的计算能力。
When you get over this limit, you won’t be able to rebuild your thumbnails.
当您超过此限制时，您将无法重建缩略图。
Why would you want to rebuild your thumbnails?
您为什么要重建缩略图？
WordPress allows you to change the size of thumbnails.
WordPress允许您更改缩略图的大小。
This way, you can make the size of thumbnails fit the design of your website.
这样，您可以使缩略图的大小适合您的网站设计。
When you change the size to fit for a new theme, all future photos you are going to upload will have this new size.
当您更改大小以适合新主题时，所有将来要上传的照片都将具有此新大小。
Your old thumbnails won’t be resized.
您的旧缩略图不会被调整大小。
That’s where this plugin comes into action.
这就是该插件起作用的地方。
After changing the image sizes, you can rebuild all thumbnails.
更改图像尺寸后，您可以重建所有缩略图。
But instead of telling the server to recreate all thumbnails at once, they are rebuilt one after another.
但是，与其告诉服务器立即重新创建所有缩略图，不如一遍又一遍地重建它们。
Rebuilding thumbnails for one photo won’t take all too long, so you won’t run into any script timeouts.
重建一张照片的缩略图不会花费太长时间，因此您不会遇到任何脚本超时问题。
Note that you still have to wait until all thumbnails have been rebuilt.
请注意，您仍然必须等待所有缩略图都被重建。
If you close the page before the task is completed, you have to start all over again.
如果在任务完成前关闭页面，则必须重新开始。
You can also select the thumbnail sizes you want to rebuild, so that you don’t need to recreate all images if you’ve just changed one thumbnail-size.
您还可以选择要重建的缩略图尺寸，这样，只要更改了一个缩略图尺寸，就无需重新创建所有图像。
You can also choose to only rebuild post thumbnails (featured images).
您还可以选择仅重建帖子缩略图（功能强大的图像）。
This plugin requires JavaScript to be enabled.
此插件需要启用JavaScript。
Contributions are welcome at Github
欢迎在 Github 上捐款。
