//创建command对象
                    SqlCommand command = new SqlCommand(sql, DBHelper.conn);
                    //打开数据连接
                    DBHelper.conn.Open();
                    //执行命令
                    int resurt = command.ExecuteNonQuery();

                   //根据操作给出提示信息
                    if (resurt != 1)
                    {
                        MessageBox.Show("增加失败！", "操作提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    }
                    else
                    {
                        MessageBox.Show("增加成功！", "操作提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    }
                }
                catch (Exception ex)
                {

                    MessageBox.Show(ex.Message);
                }
                finally
                {
                    DBHelper.conn.Close();
                }




int resurt = command.ExecuteNonQuery();这什么意思..后面的我知道是执行SQL语句.
前面的int resurt是什么意思....看了好多都不明白...高手给说明下。 ..谢谢。

执行sql语句并返回sql语句对数据库影响的的行数啊,

这么快结贴啊

二楼正解！