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\n<li><code>extjs</code> contains the Ext JS 4 SDK files包含了Ext JS 4 SDK文件</li>\n<li><code>resources</code> contains additional CSS and image files which are responsible for the look and feel of the application, as well as other static resources (XML, JSON, etc.)包含额外的CSS和图像文件，这是负责的外观和感觉的应用程序，以及其他静态资源（XML，JSON等）</li>\n<li><code>index.html</code> is the entry-point HTML document是HTML文档的入口点</li>\n<li><code>app.js</code> contains your application's logic包含应用程序的逻辑</li>\n</ul>\n\n\n<p>Don't worry about creating all those directories at the moment.  For now lets just focus on creating the minimum amount of code necessary to get an Ext JS application up and running.\nTo do this we'll create a basic \"hello world\" Ext JS application called \"Hello Ext\".  First, create the following directory and files in your web root directory.</p>\n\n\n<p>不要担心所有这些目录创建的时刻。现在让我们专注于创建需要得到Ext JS的应用程序代码的最低金额和运行。要做到这一点，我们将创建一个基本的你好世界Ext JS的应用，被称为EXT。首先，在您的网站根目录中创建以下目录和文件。</p>\n\n<pre><code>- helloext\n    - app.js\n    - index.html\n</code></pre>\n\n<p>Then unzip the Ext JS 4 SDK to a directory named <code>extjs</code> in the <code>helloext</code> directory</p>\n\n<p>然后解压缩的Ext JS 4 SDK的一个名为<code>extjs</code>在<code>helloext</code>目录</p>\n\n<p>A typical Ext JS application is contained in a single HTML document - <code>index.html</code>.  Open <code>index.html</code> and insert the following html code:</p>\n\n<p>一个典型的Ext JS的应用程序包含在一个单一的HTML文档 - <code>index.html</code>.  打开 <code>index.html</code>和插入下面的HTML代码：