So you really shouldn't rely on index-based access for a specific named element.
所以确实不应该对指定了名称的元素使用基于索引的访问方法。
The one difference is that you must now specify a namespace Uniform Resource Identifier (URI) when requesting a named element as well as a local name.
一个区别是现在请求被命名的元素和本地名称时必须指定名称空间统一资源标识符(uri)。
XML allows you to use something called namespaces and schemas, which let you predefine the expected structure of a particular named element in the file.
XML允许使用名称空间，允许对文件中特定的元素的期望结构进行预定义。
Specifies that a declared programming element redeclares and hides an identically named element, or set of overloaded elements, in a base class.
指定已声明的编程元素重新声明并隐藏基类中的同名元素或重载元素集。
Specifies that a declared programming element redeclares and hides an identically named element, or set of overloaded elements, in a base class.
指定已声明的编程元素重新声明并隐藏基类中的同名元素或重载元素集。
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