DataTable dt = ds.Tables[0]; //获得 DataTable
DataView dv = new DataView(dt);
DataTable dt2 = dv.ToTable(true, "OFFICE"); // 去重,只针对 OFFICE字段
DataTable dt = ds.Tables[0]; //获得 DataTable
DataView dv = new DataView(dt);
DataTable dt2 = dv.ToTable(true, "OFFICE"); // 去重,只针对 OFFICE字段