From c957fae3f0d668ccdd46168df93438d0f176b973 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Thu, 16 Jul 2026 10:16:53 +0800
Subject: [PATCH] =?UTF-8?q?day02-=E8=BF=90=E7=AE=97=E7=AC=A6-=E7=AE=97?=
 =?UTF-8?q?=E6=9C=AF=E8=BF=90=E7=AE=97=E7=AC=A6=E5=AD=97=E7=AC=A6=E4=B8=B2?=
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---
 day02/src/com/inmind/yunsuan02/Demo08.java | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 day02/src/com/inmind/yunsuan02/Demo08.java

diff --git a/day02/src/com/inmind/yunsuan02/Demo08.java b/day02/src/com/inmind/yunsuan02/Demo08.java
new file mode 100644
index 0000000..0e2b30d
--- /dev/null
+++ b/day02/src/com/inmind/yunsuan02/Demo08.java
@@ -0,0 +1,21 @@
+package com.inmind.yunsuan02;
+/**
+ 运算符+遇到字符串时，表示拼接和连接
+ 当字符串遇到数字使用+来运算时，进行拼接操作，得到一个更长的字符串
+
+ */
+public class Demo08 {
+    public static void main(String[] args) {
+        //字符串是一个引用数据类型，不是基本数据类型
+        String s = "abc";
+        int i = 10;
+        String s1 = s+i;
+        System.out.println(s1);//abc10;
+        System.out.println("变量b1的值：  "+s1);
+
+        System.out.println(s+123);//abc123
+        System.out.println(123+s+321);//123abc321
+        System.out.println(1+3+s+321);//4abc321
+        System.out.println(1+3+s+3+1);//4abc31
+    }
+}