key.h

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// KEY.h: interface for the KEY class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_KEY_H__9EE7C1DC_5ABB_4025_B6E9_C7369CA5A531__INCLUDED_)
#define AFX_KEY_H__9EE7C1DC_5ABB_4025_B6E9_C7369CA5A531__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "ANY.h"
#include "DEF.h"
#include "Time.h"
#include "Date.h"
#include "math.h"
#include "string.h"

/*struct MultiValue
{
	BYTE type1;
	union
	{
		unsigned int uival;
		int ival;
		float fval;
		char sval[KEY_LENGTH];
		BYTE tval[4];
		WORD dval[4];
	}V1;
	BYTE type2;
	union
	{
        unsigned int uival;
		int ival;
		float fval;
		char sval[KEY_LENGTH];
		BYTE tval[4];
		WORD dval[4];
	}V2;
	MultiValue()
	{
	}
};*/
class KEY  
{
public:
    BYTE plus;
	BYTE type;
	union _VAL
	{
		unsigned int uival;
        int ival;
		float fval;
		char sval[KEY_LENGTH];//包括/0,即键值长度最多是8(9-1)
        BYTE tval[4];
  		WORD dval[4];
		//MultiValue *mval;
	}VAL;//KEY_LENGTH个字节
        
public:
	//KEY(BYTE p,MultiVal mv);
	KEY(ANY value);//不支持UINT
	KEY(const KEY &k);
	KEY(BYTE t);
	KEY(BYTE p,Date date);
	KEY(BYTE p,Time time);
	KEY(BYTE p,CString s);
	KEY(BYTE p,float fval);
	KEY(BYTE p,int ival);
	KEY(BYTE p,unsigned int uival);
	KEY();
	
	//KEY & operator()(BYTE D,int k);
    KEY & operator =(KEY k1);
	bool operator ==(KEY k1);
    bool operator !=(KEY k1);
	bool operator >(KEY k1);
	bool operator <(KEY k1);
	bool operator >=(KEY k1);
    bool operator <=(KEY k1);
	virtual ~KEY();

};

#endif // !defined(AFX_KEY_H__9EE7C1DC_5ABB_4025_B6E9_C7369CA5A531__INCLUDED_)