1 <?xml version="1.0"?>
 2 <root>
 3     <branch>branch</branch>
 4     <a:root xmlns:a="http://myserver.com">
 5         <a:branch>a-branch</a:branch>
 6         <b:branch xmlns:b="http://yourserver.com">
 7             b-branch
 8         </b:branch>
 9     </a:root>
10 </root>

 1     window.onload = function()
 2     {
 3     //*
 4         var dom = new ActiveXObject("MSXML2.DOMDocument.6.0");
 5         dom.async= false;
 6         dom.validateOnParse = false;
 7         //dom.load("example.xml"); // 加载 xml文件
 8         dom.loadXML(g_strXML);　　// 加载 xml字符串
 9         if (dom.parseError.errorCode!=0)
10         {
11             alert("can't load dom" + dom.parseError.reason);
12             exit;
13         }
14     //*/
15         console.log("dom : '"+dom+"' , "+typeof dom);
16     /*    for (var z in dom) // ZC: 这个dom不能使用这个方式取得它的属性/方法，会报错:"对象不支持此操作"
17         {
18             console.log(z);
19         }
20     //*/
21 //*    // *** *** ***
22         ns = "xmlns:na='http://myserver.com' xmlns:nb='http://yourserver.com'";
23
24         console.log("ns:(before setProperty())\n  "+dom.getProperty("SelectionNamespaces")); // DOMParser不能使用这种方式来检索带命名空间的节点，∵它只有一个方法 parseFromString，没有getProperty/setProperty方法
25         console.log("");
26
27         dom.setProperty("SelectionNamespaces", ns);
28         console.log("ns:(after setProperty())\n  "+dom.getProperty("SelectionNamespaces"));
29         console.log("");
30
31         node = dom.selectSingleNode("//root");
32         console.log("root: \n"+node.xml);
33         //alert("root: \n"+node.xml);
34         console.log("");
35
36         node = dom.selectSingleNode("//na:root");
37         console.log("a:root: \n"+node.xml);
38         console.log("");
39
40         node = dom.selectSingleNode("//branch");
41         console.log("branch: \n"+node.xml);
42         console.log("");
43
44         node = dom.selectSingleNode("//na:branch");
45         console.log("a:branch: \n"+node.xml);
46         console.log("");
47
48         node = dom.selectSingleNode("//nb:branch");
49         console.log("b:branch: \n"+node.xml);
50         //alert("b:branch: \n"+node.xml);
51 //*/
52     };

日志: dom : '' , object

 1 ns:(before setProperty())
 2 ns:(after setProperty())
 3 xmlns:na='http://myserver.com' xmlns:nb='http://yourserver.com'
 4
 5 root:
 6 <root>
 7 <branch>branch</branch>
 8 <a:root xmlns:a="http://myserver.com">
 9 <a:branch>a-branch</a:branch>
10 <b:branch xmlns:b="http://yourserver.com">
11 b-branch
12 </b:branch>
13 </a:root>
14 </root>
15
16 a:root:
17 <a:root xmlns:a="http://myserver.com">
18 <a:branch>a-branch</a:branch>
19 <b:branch xmlns:b="http://yourserver.com">
20 b-branch
21 </b:branch>
22 </a:root>
23
24 branch:
25 <branch>branch</branch>
26
27 a:branch:
28 <a:branch xmlns:a="http://myserver.com">a-branch</a:branch>
29
30 b:branch:
31 <b:branch xmlns:b="http://yourserver.com">
32 b-branch
33 </b:branch>