From 1e3d9587236a1a086c36bd735ffff4054a399423 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=BB=A4=E7=8B=90=E4=B8=80=E5=86=B2?=
 <43949039+anonymousGiga@users.noreply.github.com>
Date: Sat, 22 Jul 2023 15:43:22 +0800
Subject: [PATCH] Update chapter_3_1.md

---
 src/chapter_3/chapter_3_1.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/chapter_3/chapter_3_1.md b/src/chapter_3/chapter_3_1.md
index 3be7dfe..5c52676 100644
--- a/src/chapter_3/chapter_3_1.md
+++ b/src/chapter_3/chapter_3_1.md
@@ -81,5 +81,14 @@ fn main() {
     let mut b: u32 = 1;     // 定义可变变量b
     b = 2;                  // 对b的值进行的修改
     println!("b: {:?}", b); // 输出结果为2
+
+    let c = 5;
+    {
+        // 在当前的花括号作用域内，对之前的c进行隐藏
+        let c = 3;
+        println!("c: {:?}", c); // 输出结果为3
+    } 
+    println!("c: {:?}", c); // 输出结果为5
 }
 ```
+