From 0253dc7a4c2571f36ef1a8771650efb94d0cc41a Mon Sep 17 00:00:00 2001
From: YangFong <70502828+YangFong@users.noreply.github.com>
Date: Mon, 7 Mar 2022 19:00:10 +0800
Subject: [PATCH] docs: adjust sample code comments

---
 .../ch04-understanding-ownership/listing-04-03/src/main.rs    | 2 +-
 .../ch04-understanding-ownership/listing-04-04/src/main.rs    | 4 ++--
 .../no-listing-08-reference-with-annotations/src/main.rs      | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/listings/ch04-understanding-ownership/listing-04-03/src/main.rs b/listings/ch04-understanding-ownership/listing-04-03/src/main.rs
index 21bd806..d42e3c1 100644
--- a/listings/ch04-understanding-ownership/listing-04-03/src/main.rs
+++ b/listings/ch04-understanding-ownership/listing-04-03/src/main.rs
@@ -10,7 +10,7 @@ fn main() {
                                   // 但 i32 是 Copy 的，所以在后面可继续使用 x
 
 } // 这里, x 先移出了作用域，然后是 s。但因为 s 的值已被移走，
-// 所以不会有特殊操作
+  // 所以不会有特殊操作
 
 fn takes_ownership(some_string: String) { // some_string 进入作用域
   println!("{}", some_string);
diff --git a/listings/ch04-understanding-ownership/listing-04-04/src/main.rs b/listings/ch04-understanding-ownership/listing-04-04/src/main.rs
index d1c1f74..8dd5b47 100644
--- a/listings/ch04-understanding-ownership/listing-04-04/src/main.rs
+++ b/listings/ch04-understanding-ownership/listing-04-04/src/main.rs
@@ -8,9 +8,9 @@ fn main() {
                                       // takes_and_gives_back 中,
                                       // 它也将返回值移给 s3
 } // 这里, s3 移出作用域并被丢弃。s2 也移出作用域，但已被移走，
-// 所以什么也不会发生。s1 移出作用域并被丢弃
+  // 所以什么也不会发生。s1 移出作用域并被丢弃
 
-fn gives_ownership() -> String {             // gives_ownership 将返回值移动给
+fn gives_ownership() -> String {           // gives_ownership 将返回值移动给
                                            // 调用它的函数
 
   let some_string = String::from("yours"); // some_string 进入作用域
diff --git a/listings/ch04-understanding-ownership/no-listing-08-reference-with-annotations/src/main.rs b/listings/ch04-understanding-ownership/no-listing-08-reference-with-annotations/src/main.rs
index d39c64a..b750308 100644
--- a/listings/ch04-understanding-ownership/no-listing-08-reference-with-annotations/src/main.rs
+++ b/listings/ch04-understanding-ownership/no-listing-08-reference-with-annotations/src/main.rs
@@ -7,7 +7,7 @@ fn main() {
 }
 
 // ANCHOR: here
-fn calculate_length(s: &String) -> usize { // s is a reference to a String
+fn calculate_length(s: &String) -> usize { // s 是对 String 的引用
     s.len()
 } // 这里，s 离开了作用域。但因为它并不拥有引用值的所有权，
   // 所以什么也不会发生