diff --git a/day05/src/com/inmind/array01/Test10.java b/day05/src/com/inmind/array01/Test10.java
new file mode 100644
index 0000000..6e898df
--- /dev/null
+++ b/day05/src/com/inmind/array01/Test10.java
@@ -0,0 +1,27 @@
+package com.inmind.array01;
+/*
+基本数据类型作为方法参数的操作
+断点：break point
+断点使用：在要调用的方法的第一行，点上断点
+F8:向下执行一行代码
+F7:进入方法中
+shift+F8:跳出方法
+ */
+public class Test10 {
+    public static void main(String[] args) {
+        //定义2个整数（基本数据类型）
+        int a = 10;
+        int b = 20;
+        //调用一个方法
+        changValue(a,b);
+        System.out.println(a);
+        System.out.println(b);
+    }
+
+    public static void changValue(int a,int b) {
+        a = a+a;
+        b = b+b;
+    }
+
+
+}
diff --git a/day05/src/com/inmind/array01/Test11.java b/day05/src/com/inmind/array01/Test11.java
new file mode 100644
index 0000000..e588173
--- /dev/null
+++ b/day05/src/com/inmind/array01/Test11.java
@@ -0,0 +1,16 @@
+package com.inmind.array01;
+
+public class Test11 {
+    public static void main(String[] args) {
+        int[] arr = {10, 20};
+        System.out.println(arr);
+        changeValue(arr);
+        System.out.println(arr[0]);
+        System.out.println(arr[1]);
+    }
+
+    private static void changeValue(int[] arr) {
+        arr[0] = arr[0] + arr[0];
+        arr[1] = arr[1] + arr[1];
+    }
+}