str = fNode.nodeName + ":" + fNode.text; //结果:"Name:c++"
str = lNode.nodeName + ":" + lNode.text; //结果为:"info:2"
str = nextSibling.nodeName + ":" + nextSibling.text; //结果为:"Price:20"
var nodeList;
str = "";
nodeList = xmlDoc.selectNodes("//info"); //查找元素名为"info"的节点
for (var j=0; j<nodeList.length; j++) //有两个info节点
{
var infoNode = nodeList.item(j);
var cldNodes = infoNode.childNodes; //info节点的子节点集
for (var k=0; k<cldNodes.length; k++)
{
str += cldNodes.item(k).nodeName + ":" + cldNodes.item(k).text + " ";
}
//结果“k:1 k: