DataSet ds;
        public DataTable gettable(int id)
        { 
            //*****
            string str;
            SqlConnection cn = new SqlConnection(str);
            SqlCommand cmd = new SqlCommand("select * from ",cn );
            SqlDataAdapter da = new SqlDataAdapter(cmd);
            DataTable dt = new DataTable();
            da.Fill(dt);
            return dt;
        }

        //接收
        DataTable dt = gettable(id );