readme.wzd

《Visual C++ MFC编程实例》配套代码,如果大家正在学习此教程

/////////////////////////////////////////////////////////////////////
// Example files.
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WzdInfo.cpp -- a sample data class to store in a list
WzdInfo.h

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// List of Pointers 
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// 1) include "afxtempl.h"

// 2) create list class object
	CList<CWzdInfo *,CWzdInfo *> m_WzdPtrList;

// 3) to add pointers to list of pointers
	m_WzdPtrList.AddTail(new CWzdInfo("eight",10));
	m_WzdPtrList.AddHead(new CWzdInfo("nine",14));
	m_WzdPtrList.AddHead(new CWzdInfo("ten",14));


// 4) to iterate the pointer list
	for (pos=m_WzdPtrList.GetHeadPosition();pos;)
	{
		CWzdInfo *pInfo=m_WzdPtrList.GetNext(pos);

		/////
	}

// 5) to find 2nd element in list
	pos=m_WzdPtrList.FindIndex(1);

// 6) to remove from pointer list
	pInfo=m_WzdPtrList.GetAt(pos);
	m_WzdPtrList.RemoveAt(pos);
	// (make sure you delete this object at some point)
	delete pInfo;

// 7) to destroy a list of pointers and the objects they point to
	while (!m_WzdPtrList.IsEmpty())
	{
		delete m_WzdPtrList.RemoveHead();
	}


/////////////////////////////////////////////////////////////////////
// List of Class Objects
/////////////////////////////////////////////////////////////////////

// 1) include "afxtempl.h"

// 2) create list class object
	CList<CWzdInfo,CWzdInfo&> m_WzdList;

// 3) to add a class object to a list
	CWzdInfo info1("first",1);
	CWzdInfo info2("new",1);
	CWzdInfo info3("newer",1);
	m_WzdList.AddTail(info1);
	m_WzdList.AddHead(info2);
	m_WzdList.AddHead(info3);

// 4) to iterate the list of objects
	for (POSITION pos=m_WzdList.GetHeadPosition();pos;)
	{
		info=m_WzdList.GetNext(pos);

		/////
	}

// 5) to find 2nd object in list
	pos=m_WzdList.FindIndex(1);

// 6) to remove an object from list
	info=m_WzdList.GetAt(pos);
	m_WzdList.RemoveAt(pos);


// 7) to destroy list of objects
	m_WzdList.RemoveAll(); // or just let it deconstruct itself


/////////////////////////////////////////////////////////////////////
// From: Visual C++ MFC Programming by Example by John E. Swanke
// Copyright (C) 1998 jeswanke. All rights reserved.
/////////////////////////////////////////////////////////////////////