我想实现一条一条的数据都插入到一个表里，也就是批量插入把，但是我使用了for循环，能实现插入但是插入的是相同的信息，而且如果是插入三条，它就出现三条同样的信息，插入两条就是两条同样的信息，我想问问怎么改改，才能使它插入不同内容的信息，有几条插几条呢？，主要的问题是怎么插入不同内容的信息呢？
我的代码是： for (int n = 0; n < dw.Tables["purchaselist1"].Rows.Count; n++)
                    {
                        dr = dw.Tables["purchaselist1"].Rows[i];
                        string a = dr["goodsid"].ToString();
                        string b = dr["djh"].ToString();
                        string c = dr["goodsname"].ToString();
                        string d = dr["enterquantity"].ToString();
                        string f = dr["unitprice"].ToString();

                        string baocunCmd = "insert into purchaselist2 (goodsid,djh,goodsname,enterquantity,unitprice,warehouseid,dqkucun,total) values ('" + a + "', '" + b + "','" + c + "','" + d + "','" + f + "','" + g + "','" + Convert.ToInt32(d) + Convert.ToInt32(d) + "','" +Convert.ToInt32(f)*(Convert.ToInt32(d) + Convert.ToInt32(d))+ "')";
                        using (SqlCommand MyCommand1 = new SqlCommand(baocunCmd, conn1))
                        {
                            MyCommand1.ExecuteNonQuery();
                        }

                    }