void write_to_excel(void)
{    
_Application app;    
Workbooks books;
_Workbook book;
Worksheets sheets;
_Worksheet sheet;
 Range range;
 Range iCell;
 LPDISPATCH lpDisp;    
 COleVariant vResult;
 COleVariant
     covTrue((short)TRUE),
     covFalse((short)FALSE),
        covOptional((long)DISP_E_PARAMNOTFOUND, VT_ERROR); 
  if(!AfxOleInit())  
    {
        AfxMessageBox("无法初始化COM的动态连接库!");
        return ;
    }   
    
    
    //*****
    //创建Excel 2000服务器(启动Excel)
    if(!app.CreateDispatch("Excel.Application")) 
    {
        AfxMessageBox("无法启动Excel服务器!");
        return;
    }
    
     app.SetVisible(TRUE);          //使Excel可见
     app.SetUserControl(TRUE);      //允许其它用户控制Excel
     books.AttachDispatch(app.GetWorkbooks());
     lpDisp = books.Open("F:\\1.xls",      
         covOptional,covOptional, covOptional, covOptional, covOptional,
         covOptional, covOptional, covOptional, covOptional, covOptional,
         covOptional, covOptional,covOptional,covOptional );    
     
     
     //*****
     //得到Workbook
 book.AttachDispatch(lpDisp);
 sheets.AttachDispatch(book.GetWorksheets()); 
 
 
 //得到当前活跃sheet
 //如果有单元格正处于编辑状态中，此操作不能返回，会一直等待
 lpDisp=book.GetActiveSheet();
 sheet.AttachDispatch(lpDisp); 

 range.SetItem(COleVariant(long(1)),COleVariant(long(1)),COleVariant(("ASHHHHHHHHHH")));

 Range usedRange;
 usedRange.AttachDispatch(sheet.GetUsedRange());
 range.AttachDispatch(usedRange.GetRows());
 long iRowNum=range.GetCount();                   //已经使用的行数
 
 range.AttachDispatch(usedRange.GetColumns());
 long iColNum=range.GetCount();                   //已经使用的列数

// range.SetItem(COleVariant(long(1)),COleVariant(long(1)),COleVariant(_T("命令结构"))); 
// range.SetItem(_variant_t((short) 1),_variant_t((short) 1),_variant_t("HI,EXCEL!")); 
 
 //book.SaveAs(COleVariant("F:\\1.xls"),covOptional,covOptional,covOptional,covOptional,covOptional,0,covOptional,covOptional,covOptional,covOptional,covOptional);  
 Range unionRange;
 range.AttachDispatch(sheet.GetCells()); 
 unionRange.AttachDispatch(range.GetItem (COleVariant((long)1),COleVariant((long)1)).pdispVal );
 
 vResult=unionRange.GetMergeCells();    
 if(vResult.boolVal==-1)             //是合并的单元格    
 {
     //合并单元格的行数 
     range.AttachDispatch (unionRange.GetRows ());
     long iUnionRowNum=range.GetCount (); 
     
     //合并单元格的列数
     range.AttachDispatch (unionRange.GetColumns ());
     long iUnionColumnNum=range.GetCount ();   
     
     //合并区域的起始行，列
     long iUnionStartRow=unionRange.GetRow();       //起始行，从1开始
     long iUnionStartCol=unionRange.GetColumn();    //起始列，从1开始
     
 }
else if(vResult.boolVal==0)   
{//不是合并的单元格}
     
     //将第一个单元格合并成2行，3列
     range.AttachDispatch(sheet.GetCells()); 
     unionRange.AttachDispatch(range.GetItem (COleVariant((long)3),COleVariant((long)1)).pdispVal );
     unionRange.AttachDispatch(unionRange.GetResize(COleVariant((long)10),COleVariant((long)2)));
     unionRange.Merge(COleVariant((long)0));   //合并单元格
}
 //*****
 //关闭所有的book，退出Excel 
 book.Close (covOptional,covOptional,covOptional);
 books.Close();      
 app.Quit(); 
}

程序中的range.SetItem(COleVariant(long(1)),COleVariant(long(1)),COleVariant(("ASHHHHHHHHHH")));
语句不好用~~~
然后执行语句还总是出错~~~

高人帮忙解决下~~谢谢啊~~