From f8ac1b4bb998ea8b46ddff1f6a2ebb4ee47b9d93 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Sat, 18 Jul 2026 10:38:08 +0800
Subject: [PATCH] =?UTF-8?q?day03-=E5=BE=AA=E7=8E=AF=E7=9A=84=E5=B5=8C?=
 =?UTF-8?q?=E5=A5=97?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 day03/src/com/inmind/break06/Demo13.java | 37 ++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 day03/src/com/inmind/break06/Demo13.java

diff --git a/day03/src/com/inmind/break06/Demo13.java b/day03/src/com/inmind/break06/Demo13.java
new file mode 100644
index 0000000..2e0225f
--- /dev/null
+++ b/day03/src/com/inmind/break06/Demo13.java
@@ -0,0 +1,37 @@
+package com.inmind.break06;
+/*
+循环的嵌套：外层循环执行一次，内层循环要执行一轮
+*/
+public class Demo13 {
+    //练习：使用循环的嵌套，实现时钟的效果（一天有0~23小时，每小时有0~59分） 0点0分~23点59分
+    public static void main(String[] args) {
+        //外层循环是小时，内层循环是分钟
+        for (int i = 0; i < 24; i++) {//小时
+            for (int j = 0; j < 60; j++) {//分钟
+                System.out.println("当前时间是："+i+"点"+j+"分");
+            }
+        }
+    }
+
+
+    //循环的嵌套的推导过程
+    public static void method(String[] args) {
+        /*
+        打印出一个100行100列的矩形的*
+        *****
+        *****
+        *****
+        *****
+        *****
+         */
+        for (int i = 1; i <= 5; i++) {
+            //打印5次*
+//            System.out.println("*");//println会换行
+            for (int j = 1; j <= 100; j++) {
+                System.out.print("*");//print不会换行
+            }
+            System.out.println();//换行
+        }
+
+    }
+}