From 22407e39cb96d16136f2acafbd8063f3f324bb70 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Wed, 28 Jan 2026 16:58:36 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=9B=E9=98=B6day01-System=E4=B8=AD?=
 =?UTF-8?q?=E7=9A=84=E8=8E=B7=E5=8F=96=E5=B1=9E=E6=80=A7=E5=80=BC=E4=B8=8E?=
 =?UTF-8?q?=E7=8E=AF=E5=A2=83=E5=8F=98=E9=87=8F?=
MIME-Version: 1.0
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---
 .../src/com/inmind/system05/Demo23.java       | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 javaSE-day01/src/com/inmind/system05/Demo23.java

diff --git a/javaSE-day01/src/com/inmind/system05/Demo23.java b/javaSE-day01/src/com/inmind/system05/Demo23.java
new file mode 100644
index 0000000..683e4f4
--- /dev/null
+++ b/javaSE-day01/src/com/inmind/system05/Demo23.java
@@ -0,0 +1,21 @@
+package com.inmind.system05;
+/*
+System中读取属性和环境变量的方法
+ */
+public class Demo23 {
+    public static void main(String[] args) {
+        //获取java版本
+        String javaVersion = System.getProperty("java.version");
+        System.out.println(javaVersion);
+
+        //获取操作系统名称
+        String osName = System.getProperty("os.name");
+        System.out.println(osName);
+
+        //获取环境变量 Path  JAVA_HOME ,常用于三方框架引入，读取电脑中环境配置，动态生成，执行代码
+        String javaHome = System.getenv("JAVA_HOME");
+        System.out.println(javaHome);
+        String path = System.getenv("Path");
+        System.out.println(path);
+    }
+}