diff --git a/s-day01/src/com/inmind/jdk8_time04/Demo08.java b/s-day01/src/com/inmind/jdk8_time04/Demo08.java
index dfe34af..6c68164 100644
--- a/s-day01/src/com/inmind/jdk8_time04/Demo08.java
+++ b/s-day01/src/com/inmind/jdk8_time04/Demo08.java
@@ -24,5 +24,25 @@ public class Demo08 {
         System.out.println(ld1);
         LocalDate ld2 = ld.withMonth(12);
         System.out.println(ld2);
+
+        // 4、把某个信息加多少: plusYears、plusMonths、plusDays、plusWeeks
+        LocalDate ld3 = ld.plusYears(2);
+        System.out.println(ld3);
+        LocalDate ld4 = ld.plusMonths(2);
+        System.out.println(ld4);
+
+        // 5、把某个信息减多少：minusYears、minusMonths、minusDays、minusWeeks
+        LocalDate ld5 = ld.minusYears(10);
+        System.out.println(ld5);
+
+        // 6、获取指定日期的LocalDate对象： public static LocalDate of(int year, int month, int dayOfMonth)
+        LocalDate ld6 = LocalDate.of(2028, 10, 1);
+        System.out.println(ld6);
+
+        // 7、判断2个日期对象，是否相等，在前还是在后： equals isBefore isAfter
+        System.out.println(ld5.equals(ld6));//false
+        System.out.println(ld5.isBefore(ld6));//true
+        System.out.println(ld5.isAfter(ld6));//false
+
     }
 }