代码记录一下：

1public static DataTable getByName(string typeName)
  2        {
  3            StringBuilder sb = new StringBuilder();
  4            sb.Append("select * from type1 where typeName like @typeName");
  5            OleDbParameter[] param = 
  6            {
  7                OleDbHelper.GetParameter("@typeName",OleDbType.VarChar,50,"[typeName]","%"+typeName+"%")
  8            };
  9            return OleDbHelper.ExecuteDt(sb.ToString(), param);
 10        }