The handle of the root item; otherwise NULL .
返回根项的句柄；否则返回NULL。
The first item to note about Listing 3 is that you are logging in directly to the remote machine as root.
关于清单3，需要说明的第一项内容是，您作为root用户直接登录到远程计算机。
The snippet in Listing 11 creates the XML structure by creating a cart element, and an item element and its sub-elements. It populates them with values and adds them to the Document root.
清单11中的代码通过创建一个cart元素、一个item 元素和它的子元素来创建XML结构，然后使用值填充这些子元素并将它们添加到Document 根。
The next item, context-root, specifies what directory, in the context of the root directory, your application can be found on in Geronimo after it has been deployed.
下一个项目context - root指定在Geronimo部署之后，在它的哪个目录中(相对于根目录)可以找到应用程序。
The block runs through all the sub-elements of the root element with the name item, specified by the XPath expression //item.
这个对象遍历所有带有item名称（通过XPath表达式 //item指定）的root元素的子元素。
Configure, then Activate it. There are no configuration options - configuration adds a minimal set of parameters to the root album, from whose Edit Item page they can be changed.
对其进行配置并激活。无配置选项-配置想根相册添加最小的参量集，并可在根相册的编辑项目页面中进行更改。
A submenu item of the root menu item has a depth of 1, and so on.
此根功能表项目的子功能表深度便为1，依此类推。
For example, a root menu item has a depth of 0.
例如，根功能表项目的深度为0。
For example, a root menu item has a depth of 0.
例如，根功能表项目的深度为0。
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