From 568094dc04bdeba6dc788e571ebbea72bbd52ea1 Mon Sep 17 00:00:00 2001
From: tianq02 <94333179+tianq02@users.noreply.github.com>
Date: Sun, 18 Feb 2024 18:51:30 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9=E4=BD=8D=E6=93=8D=E4=BD=9C?=
 =?UTF-8?q?=E7=A4=BA=E4=BE=8B=E5=B1=95=E7=A4=BA=E6=95=88=E6=9E=9C?=
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---
 src/basic/base-type/numbers.md | 26 ++++++++++++++++----------
 1 file changed, 16 insertions(+), 10 deletions(-)

diff --git a/src/basic/base-type/numbers.md b/src/basic/base-type/numbers.md
index b9ba71752..406a21980 100644
--- a/src/basic/base-type/numbers.md
+++ b/src/basic/base-type/numbers.md
@@ -258,27 +258,33 @@ Rust的位运算基本上和其他语言一样
 
 ```rust
 fn main() {
-    // 二进制为00000010
-    let a:i32 = 2;
+    // 无符号8位整数，二进制为00000010
+    let a: u8 = 2; // 也可以写 let a: u8 = 0b_0000_0010;
+
     // 二进制为00000011
-    let b:i32 = 3;
+    let b: u8 = 3;
+
+    // {:08b}：左高右低输出二进制01，不足8位则高位补0
+    println!("a value is        {:08b}", a);
+
+    println!("b value is        {:08b}", b);
 
-    println!("(a & b) value is {}", a & b);
+    println!("(a & b) value is  {:08b}", a & b);
 
-    println!("(a | b) value is {}", a | b);
+    println!("(a | b) value is  {:08b}", a | b);
 
-    println!("(a ^ b) value is {}", a ^ b);
+    println!("(a ^ b) value is  {:08b}", a ^ b);
 
-    println!("(!b) value is {} ", !b);
+    println!("(!b) value is     {:08b}", !b);
 
-    println!("(a << b) value is {}", a << b);
+    println!("(a << b) value is {:08b}", a << b);
 
-    println!("(a >> b) value is {}", a >> b);
+    println!("(a >> b) value is {:08b}", a >> b);
 
     let mut a = a;
     // 注意这些计算符除了!之外都可以加上=进行赋值 (因为!=要用来判断不等于)
     a <<= b;
-    println!("(a << b) value is {}", a);
+    println!("(a << b) value is {:08b}", a);
 }
 ```