#include 
    
      /************************************************************************//*  一个io模版.来实现对结构体等对象的存储和加载 struct stCityInfo  {	 char cityName[255];	 POINT A; 	 POINT B;  }; IOPack
     
       io;  int _tmain(int argc, _TCHAR* argv[]) {	 io.LoadFromFile("city.dat");	 stCityInfo info;	 strcpy(info.cityName,"武汉");	 info.A.x=111;	 info.A.y=222;	 info.B.x=333;	 info.B.y=444;	 printf("%d \n",io.m_List.size()); }  simawei@qq.com  2012*//************************************************************************/template
      
       class IOPack{public:	IOPack(void){	}	~IOPack(void){	} 	bool LoadFromFile(const char* filename)	{		printf("InitFromFile [%s]\n",filename);		FILE* f=fopen(filename,"rb");		if (NULL==f)		{			printf("[line:%d][%s] open err\n",__LINE__,__FUNCTION__);			return false;		}		int totalsize = GetFileSize(filename);		if (totalsize==-1)		{			return false;		}		int readoffset=0;		while(readoffset
       
         m_List;private:	long GetFileSize(const  char* filename )	{		FILE* fp = fopen( filename, "r" );		if (fp==NULL) return -1;		fseek( fp, 0L, SEEK_END );		int s=ftell(fp);		fclose(fp);		return  s; 	}};