.net编程

开发平台：
Visual C++

CppNavigator.cpp：源码内容
							// This is the main project file for VC++ application project 
// generated using an Application Wizard.
#include "stdafx.h"
#using <mscorlib.dll>
#using <System.xml.dll>
using namespace System;
using namespace System::Xml;
using namespace System::Xml::XPath;
// This is the entry point for this application
#ifdef _UNICODE
int wmain(void)
#else
int main(int argc, char* argv[])
#endif
{
    // Check for required arguments
    if (argc < 2)
    {
        Console::WriteLine(S"Usage: CppNavigator path");
        return -1;
    }
    String* path = new String(argv[1]);
    try
    {
        // Create the XmlDocument to parse the file
        XmlDocument* doc = new XmlDocument();
        // Load the file
        doc->Load(path);
        Console::WriteLine("Document loaded");
        // Create the navigator
        XPathNavigator* nav = doc->CreateNavigator();
        // Move to the top of the tree and print details
        nav->MoveToRoot();
        Console::WriteLine("top: name={0}, type={1}, value={2}", nav->Name, 
                            __box(nav->NodeType)->ToString(),
                            nav->Value);
        // Move to the first child, which is a comment
        nav->MoveToFirstChild();
        Console::WriteLine("first child: name={0}, type={1}", nav->Name, 
                                        __box(nav->NodeType)->ToString());
        // Move to the next element, which is the root element
        nav->MoveToNext();
        Console::WriteLine("next child: name={0}, type={1}", nav->Name, 
                                        __box(nav->NodeType)->ToString());
        // Move to the next element, which will be the first volcano
        nav->MoveToFirstChild();
        Console::WriteLine("next child: name={0}, type={1}", nav->Name, 
                                        __box(nav->NodeType)->ToString());
        if (nav->HasAttributes)
        {
            nav->MoveToFirstAttribute();
            Console::WriteLine("  attribute: name={0}, type={1}", 
                                nav->Name, nav->Value);
            nav->MoveToParent();
        }
        // Move back to the root
        Console::WriteLine(S"XPath test...");
        nav->MoveToRoot();
        XPathNodeIterator* xpi = nav->Select("/geology/volcano[comment]");
        Console::WriteLine(S"Select returned {0} nodes", __box(xpi->Count));
        while (xpi->MoveNext())
        {
            XPathNavigator* xpn = xpi->Current;
            Console::Write("node: name={0}, type={1}", xpn->Name, 
                        __box(xpn->NodeType)->ToString());
            xpn->MoveToFirstAttribute();
            Console::WriteLine(", name={0}", xpn->Value);
        }
    }
    catch(Exception* pe)
    {
        Console::WriteLine(pe->Message);
        return 0;
    }
    return 0;
}

						