#pragma once
#include "stdafx.h"
//读取数据时有异常处理.在增减参数时,可兼容不同版本,(必须在末尾进行)
//用法:
/*
void  WRdata(bool bWrite)
{
	CSmartArchive sar(L".\\param.ini", bWrite);
	sar + name;
	sar + age;
	sar + Weight;
}
*/
class CSmartArchive
{
public:
	CSmartArchive(CString filePath, bool bStore)
	{
	pArchive =NULL;
		if (bStore)
		{
			m_Mode = CArchive::store;
			if (m_file.Open(filePath, CFile::modeCreate | CFile::modeWrite))
			{
				pArchive = new CArchive(&m_file, CArchive::store);
			}
		}
		else
		{
			m_Mode = CArchive::load;
			if (m_file.Open(filePath, CFile::modeRead))
			{
				pArchive = new CArchive(&m_file, CArchive::load);
			}
		}
	}

	~CSmartArchive()
	{
		if (pArchive)
		{
			pArchive->Close();
			m_file.Close();
			delete pArchive;
			pArchive = NULL;
		}				
	};
	template <typename T>	void operator + (T & par)
	{
		if (pArchive)
		{			
				if (m_Mode != CArchive::load)
				{
					(*pArchive) << par;
				}
				else
				{
					try
					{
						(*pArchive) >> par;
					}
					catch (...) { /*AfxMessageBox(L"本次欲读取数据个数,大于上次写入个数!"); */};
				}			
		}
	};

private:
	CArchive::Mode		m_Mode;
	CArchive *			pArchive=NULL;
	CFile			m_file;
};