VC文本文件读写

CFile类：

CFile file;
   if(file.Open("filename.txt",CFile::modeReadWrite|CFile::modeCreate))
   {
           CString str;
           str.Format("%d/n",i);
           file.Write(str,str.GetLength());
    }

 

FILE类：

FILE *file = fopen("filename.txt","w+");

      fprintf("%d/n",i);