平时做技术实践时，很多问题不是概念不会，而是细节没串起来。拿“jscript与vbscript 操作XML元素属性的代码”来说，它看着像小点，放到项目里常会牵出环境、配置、兼容性和维护成本。下面按实际采用顺序，把思路、关键写法和容易踩坑的地方讲清楚，便于大家直接对照操作。
Although attributes belong to a particular element, they are not considered child nodes of element nodes. Instead, they behave more like properties of IXMLDOMElement.Most of the methods for working with attributes come from IXMLDOMElement. Attributes can be manipulated in the following ways.
Directly, through the getAttribute and setAttribute methods of IXMLDOMElement.
As named IXMLDOMAttribute nodes, with getAttributeNode and setAttributeNode.
As a set of nodes accessible through the attributes property and returned as an IXMLNamedNodeMap.
Examples
JScript
The following JScript example creates a new document containing a <memo> element, and then creates an attribute named author with a value of "Pat Coleman".
复制代码 代码如下所示:
var xmlDoc = new ActiveXObject("Msxml2.DOMDocument.3.0");
var rootElement=xmlDoc.createElement("memo");
rootElement.setAttribute("author", "Pat Coleman");
xmlDoc.appendChild(rootElement);
VBScript
复制代码 代码如下所示:
Set xmlDoc = CreateObject("Msxml2.DOMDocument.3.0")
Set rootElement=xmlDoc.createElement("memo")
rootElement.setAttribute("author", "Pat Coleman")
xmlDoc.appendChild(rootElement)
If you prefer to work with attribute nodes, you can create the attribute, and then create a text node to store its value. Attribute nodes can only contain text nodes and entity reference nodes. (If you need to create an attribute containing an entity reference, you must use this approach.)
Working with attribute nodes requires using the DOMDocument object to create attribute and text (and entity reference, if necessary) nodes before assigning the nodes to the element.
JScript
The following JScript code uses this approach to perform the same work as the preceding examples, creating a <memo> element with an author attribute holding the value "Pat Coleman".
复制代码 代码如下所示:
var xmlDoc = new ActiveXObject("Msxml2.DOMDocument.3.0");
var rootElement=xmlDoc.createElement("memo");
var memoAttribute=xmlDoc.createAttribute("author");
var memoAttributeText=xmlDoc.createTextNode("Pat Coleman");
memoAttribute.appendChild(memoAttributeText);
rootElement.setAttributeNode(memoAttribute);
xmlDoc.appendChild(rootElement);
VBScript
复制代码 代码如下所示:
Set xmlDoc = CreateObject("Msxml2.DOMDocument.3.0")
Set rootElement=xmlDoc.createElement("memo")
Set memoAttribute=xmlDoc.createAttribute("author")
Set memoAttributeText=xmlDoc.createTextNode("Pat Coleman")
memoAttribute.appendChild(memoAttributeText)
rootElement.setAttributeNode(memoAttribute)
xmlDoc.appendChild(rootElement)
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