public bool salePhone(orders Ord) { bool flag = false; string sql = ""; MyDatabase MDB = new MyDatabase(); string constr = MDB.getConnection(); MySqlConnection mycon = new MySqlConnection(constr); mycon.Open(); sql = string.Format("insert into sale_detail_table values({0},{1},{2},{3},{4},{5},{6},{7},{8},'{9}',{10})", Ord.getP_id(), Ord.getS_date(), Ord.getS_price(), Ord.getS_e_id(), Ord.getS_amount(), Ord.getS_summary(), Ord.getS_id(), Ord.getS_get(), Ord.getS_return(), Ord.getS_way(), Ord.getPr_number()); MySqlCommand mycmd = new MySqlCommand(sql, mycon); if (mycmd.ExecuteNonQuery() > 0) { sql = string.Format("update sale_summary_table set store_amount=store_amount-{0},saled_amount = saled_amount + {1} where p_id={2}", Ord.getS_amount(), Ord.getS_amount(), Ord.getP_id()); MySqlCommand mycnd = new MySqlCommand(sql, mycon); if (mycnd.ExecuteNonQuery() > 0) { // 修改手机明细记录 sql = string.Format("select MIN(ph_id) from phone_detail_table where p_id='{0}' and saled='否'", Ord.getP_id()); string pid2 = Ord.getP_id(), ph_id = ""; MySqlCommand mycmd2 = new MySqlCommand(sql, mycon); MySqlDataReader reader = null; reader = mycmd2.ExecuteReader(); if (reader.Read()) { ph_id = reader[0].ToString(); } reader.Close(); sql = string.Format("update phone_detail_table set saled='是' where p_id='{0}' and ph_id='{1}'", pid2, ph_id); MySqlCommand mycnd2 = new MySqlCommand(sql, mycon); if (mycnd2.ExecuteNonQuery() > 0) { flag = true; } else { flag = false; } } } else { flag = false; } mycon.Close(); return(flag); }