intro4_column2.html

来自「Ajax tutorial archive」· HTML 代码 · 共 31 行

HTML
31 行
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>
<head>
	<title>Introduction to Ajax Tutorial</title>
</head>

<body>
            <p class="main">
                  Assume we have page A and on this page we have a number of
                  elements, including a couple of script and style tags. With
                  synchronous data transfer the script tag needs to be parsed
                  before the next element is parsed. In this way then the next
                  element to be parsed by the browser is dependent upon the
                  script tag being parsed first. Effectively we are creating a
                  bottleneck of one connection between Web page and browser.
                  Style tags and link elements in the head section of the
                  document create the same bottleneck effect. They have to be
                  parsed one at a time before other page elements can download.
               </p>
               <p class="main">
                  Once they have been parsed then the elements in the body
                  section can use concurrent connections to help speed up the
                  download process. For example, most servers handle between 2
                  to 4 concurrent connections between web page and browser.
               </p>


</body>
</html>

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