将文本文件重新改为二进制

informix数据库中，当把一个文本文件以BLOG的方式存入后，再通过unload导出时得到的是ASC码形式的文本文件。

要转成原始的文本文件通过如下方式：

FILE     *fin = NULL,   *fout = NULL; 

char    *stopstring; 

char szBuf[4] = "/0"; 

CString  str;

fin   =   fopen("d://111.txt", "rb");

fout   =   fopen("d://222.txt", "w+t"); 

 fseek(fin, 0, SEEK_SET); 

 while ( fgets( szBuf, 3, fin ) )                           
{                                                          
    int iCget = strtol( szBuf, &stopstring, 16 );            
                                                           
    str = str + (char)(iCget);                               
}                                                          
                                                           
fwrite(str,   sizeof(byte),   str.GetLength(),   fout);    
                                                           
fclose(fin);                                               
fclose(fout);