public bool Add(Liuyan refmodel)     {         string sql = "insert into liuyan(name,phone,zhiwei,gongsi,addr,country,dianyou,content,adddate)values(@name,@phone,@zhiwei,@gongsi,@addr,@country,@dianyou,@content,@adddate)";         OleDbParameter[] parameters ={             new OleDbParameter("@name",OleDbType.VarChar),             new OleDbParameter("@tel",OleDbType.VarChar),             new OleDbParameter("@zhiwei",OleDbType.VarChar),             new OleDbParameter("@gongsi",OleDbType.VarChar),             new OleDbParameter("@addr",OleDbType.VarChar),             new OleDbParameter("@country",OleDbType.VarChar),             new OleDbParameter("@dianyou",OleDbType.VarChar),             new OleDbParameter("@content",OleDbType.VarChar),             new OleDbParameter("@adddate",OleDbType.VarChar)         };         parameters[0].Value=model.Xingming;         parameters[1].Value=model.Tel;         parameters[2].Value=model.Zhiwei;         parameters[3].Value=model.Gongsi;         parameters[4].Value=model.Addr;         parameters[5].Value=model.Country;         parameters[6].Value=model.Dianyou;         parameters[7].Value=model.Content;         parameters[8].Value=model.Adddate;         return sqlHelper.executeCommand(sql, parameters);     }  

　　　parameters[0].Value=model.Xingming;         parameters[1].Value=model.Tel;         parameters[2].Value=model.Zhiwei;         parameters[3].Value=model.Gongsi;         parameters[4].Value=model.Addr;         parameters[5].Value=model.Country;         parameters[6].Value=model.Dianyou;         parameters[7].Value=model.Content;         parameters[8].Value=model.Adddate;

　　　　 //使用反射记得引用using System.Reflection;命名空间 　　　　 Type t = refmodel.GetType();        for (int i = 0; i < t.GetProperties().Length; i++)         {             parameters[i].Value= t.GetProperties()[i].GetValue(refmodel, null);         }