学步园

BYTE pBuf[1024];
memset(pBuf,0x00,1024);
CMemFile pFile(pBuf, 1024, 0); 
char buffer[]="Hello world";
pFile.Write(buffer,nSize);
char get_header_buffer[1024];
memset(get_header_buffer,0x00,1024);
pFile.Read(get_header_buffer,20);
int len=pFile.GetLength(); 
pFile.Close()