public static bool AddPerson(Person p)
 {
     AccessDBHelper.ExcuteNonQuery(@"insert into Persons (姓名,年龄) values (@Name,@Age)",
                                   new OleDbParameter("@Name", p._name),
                                   new OleDbParameter("@Age", p._age));
     return(true);
 }
        public static List <Person> GetAllPerson1()
        {
            List <Person>     personArray = new List <Person>();
            DataSet           dataset     = AccessDBHelper.ExcuteGetDataset(@"select * from Persons");
            DataTable         table       = dataset.Tables[0];
            DataRowCollection rows        = table.Rows;

            foreach (DataRow row in rows)
            {
                string strName = (string)row[@"姓名"];
                int    age     = (int)row[@"年龄"];
                personArray.Add(new Person(strName, age));
            }
            return(personArray);
        }