diff --git a/day05/src/com/inmind/array01/Demo10.java b/day05/src/com/inmind/array01/Demo10.java
new file mode 100644
index 0000000..ad61b85
--- /dev/null
+++ b/day05/src/com/inmind/array01/Demo10.java
@@ -0,0 +1,24 @@
+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 Demo10 {
+    public static void main(String[] args) {
+        int a = 10;
+        int b = 20;
+        //定义一个方法:alt+enter
+        changeValue(a,b);//基本数据类型作为参数，传递值
+        System.out.println(a);//10
+        System.out.println(b);//20
+    }
+
+    private static void changeValue(int a, int b) {
+        a = a+a;
+        b = b+b;
+    }
+}