var query1 = from rJlrInfodt in JlrInfodt.AsEnumerable()
                                     from rdtsource in dtsource.AsEnumerable()
                                     where rJlrInfodt.Field<String>("姓名") == rdtsource.Field<String>("lqry")
                                     select new
                                     {
                                         领取人员 = rdtsource.Field<String>("lqry"),
                                         提交总量 = rdtsource.Field<Int64>("提交总量"),
                                         号 = rJlrInfodt.Field<Double>("号"),
                                         单位 = rJlrInfodt.Field<String>("单位"),
                                     };
                        DataTable DtAll = new DataTable();
                        DtAll.Columns.Add("领取人员", typeof(String));
                        DtAll.Columns.Add("提交总量", typeof(Int64));
                        DtAll.Columns.Add("号", typeof(Double));
                        DtAll.Columns.Add("单位", typeof(String));
                        DataTable dtNew = DtAll.Copy();
                        foreach (var obj in query1)
                            dtNew.Rows.Add(obj.领取人员, obj.提交总量, obj.号, obj.单位);