Now the user experience becomes more and more important. It is necessary to have a very rich content for a website, so how to presen all the columns to the user faster? I think asynchronous loading technology is one of the solutions. For example: When the user browses a page, the content to download is HTML code, JS code, CSS code, picture, flash. And these only linear downloads, that is, if there is 500KB, then the user is going to download the 500kb content, of course, IE or Firefox has its own way of reading, carefully observe, they will find that they will Present a part of the content, but it is still linear way, just a part of the reading. How to presen content faster to the user, reduce the waiting for the user. First, the interface is first divided into the area, such as
