foreach (DataRow dr in dt.Rows)
{
body += dr["ProName"].ToString().Trim()+",";
toprice += Convert.ToDouble(dr["TotalPrice"]);
if(dt.Rows.IndexOf(dr)==dt.Rows.Count-1){
//最后一行
}
}
foreach (DataRow dr in dt.Rows)
{
body += dr["ProName"].ToString().Trim()+",";
toprice += Convert.ToDouble(dr["TotalPrice"]);
if(dt.Rows.IndexOf(dr)==dt.Rows.Count-1){
//最后一行
}
}