diff --git a/day03/src/com/inmind/circle_control07/Demo14.java b/day03/src/com/inmind/circle_control07/Demo14.java
new file mode 100644
index 0000000..dc8be43
--- /dev/null
+++ b/day03/src/com/inmind/circle_control07/Demo14.java
@@ -0,0 +1,27 @@
+package com.inmind.circle_control07;
+/*
+死循环：循环条件永远满足
+*/
+public class Demo14 {
+    public static void main(String[] args) {
+        //while 死循环 :最常用的死循环
+        while (true) {
+            System.out.println(1);
+            //在死循环中，可以使用break，在满足某种条件下，结束循环
+        }
+        //---------------------------------------
+        //for 死循环
+        /*for (; ; ) {
+            System.out.println(1);
+        }
+        */
+
+        //---------------------------
+        //do-while 死循环
+        /*do {
+            System.out.println(1);
+        } while (true);*/
+
+//        System.out.println("程序结束");
+    }
+}