SQLiteConnection.CreateFile("hisine.db");
m_dbConnection = new SQLiteConnection("Data Source=hisine.db;Version=3;");
m_dbConnection.Open();
string sql = "create table orders (创建时间,商品信息,商品id,付款金额,效果预估,订单编号,广告位名称,退款日期)";
SQLiteCommand command = new SQLiteCommand(sql, m_dbConnection);
command.ExecuteNonQuery();
m_dbConnection.Close();

private DataTable SqlQueryDataTable(string sql)//将sql语句的查询记录返回到DataTable
        {
            DataTable table = new DataTable();
            if (m_dbConnection.State != ConnectionState.Open)
                return table;
            SQLiteCommand cmd = new SQLiteCommand(sql, m_dbConnection);
            SQLiteDataAdapter dataAdapter = new SQLiteDataAdapter();
            dataAdapter.SelectCommand = cmd;
            dataAdapter.Fill(table);
            return table;
        }