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public void CreateExcel(DataSet ds,string FileName)
{
HttpResponse resp;
resp = System.Web.HttpContext.Current.Response;
resp.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
resp.AppendHeader("Content-Disposition", "attachment;filename=" + FileName);
string colHeaders= "", ls_item="";
int i=0;
//¶¨Òå±í¶ÔÏóÓëÐжÔÏñ£¬Í¬Ê±ÓÃDataSet¶ÔÆäÖµ½øÐгõʼ»¯
DataTable dt=ds.Tables[0];
DataRow[] myRow=dt.Select("");
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for(i=0;i<dt.Columns.Count-1;i++)
colHeaders+=dt.Columns[i].Caption.ToString()+"\t";
colHeaders +=dt.Columns[i].Caption.ToString() +"\n";
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resp.Writ
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