diff --git a/day03/src/com/inmind/do_while04/Demo08.java b/day03/src/com/inmind/do_while04/Demo08.java
new file mode 100644
index 0000000..ee5c1ad
--- /dev/null
+++ b/day03/src/com/inmind/do_while04/Demo08.java
@@ -0,0 +1,23 @@
+package com.inmind.do_while04;
+/*
+循环变量初始化①
+do{
+        循环体③
+        修改循环变量④
+}while(循环条件②);
+
+执行顺序：①③④>②③④>②③④…②不满足为止。
+比较特殊：优先执行一次循环体语句
+*/
+public class Demo08 {
+    public static void main(String[] args) {
+        //打印1~10
+        int k = 1;
+        do{
+            System.out.println(k);
+            k++;
+        }while(k<=10);
+
+        System.out.println("程序结束");
+    }
+}