diff --git a/s-day01/src/com/inmind/jdk8_time04/PeriodDemo13.java b/s-day01/src/com/inmind/jdk8_time04/PeriodDemo13.java
new file mode 100644
index 0000000..59cc2b9
--- /dev/null
+++ b/s-day01/src/com/inmind/jdk8_time04/PeriodDemo13.java
@@ -0,0 +1,19 @@
+package com.inmind.jdk8_time04;
+
+import java.time.LocalDate;
+import java.time.Period;
+/**
+ * 目标：掌握Period的作用：计算机两个日期相差的年数，月数、天数。
+ 注意：只能两个计算LocalDate对象之间的间隔
+ */
+public class PeriodDemo13 {
+    public static void main(String[] args) {
+        LocalDate localDate = LocalDate.now();
+        LocalDate bir = LocalDate.of(1989, 8, 1);
+        //某人从出生到现在活了多少年月日
+        Period period = Period.between(bir,localDate);
+        System.out.println(period.getYears());
+        System.out.println(period.getMonths());
+        System.out.println(period.getDays());
+    }
+}