diff --git a/codes/rust/chapter_stack_and_queue/stack.rs b/codes/rust/chapter_stack_and_queue/stack.rs
index 4fd7c1e6b..be392a917 100644
--- a/codes/rust/chapter_stack_and_queue/stack.rs
+++ b/codes/rust/chapter_stack_and_queue/stack.rs
@@ -22,7 +22,7 @@ pub fn main() {
     print_util::print_array(&stack);
 
     // 访问栈顶元素
-    let peek = stack.get(stack.len() - 1).unwrap();
+    let peek = stack.last().unwrap();
     print!("\n栈顶元素 peek = {peek}");
 
     // 元素出栈
diff --git a/docs/chapter_stack_and_queue/stack.md b/docs/chapter_stack_and_queue/stack.md
index 2b6619a50..581459b8c 100755
--- a/docs/chapter_stack_and_queue/stack.md
+++ b/docs/chapter_stack_and_queue/stack.md
@@ -278,7 +278,7 @@
     stack.push(4);
 
     /* 访问栈顶元素 */
-    let top = stack[stack.len() - 1];
+    let top = stack.last().unwrap();
 
     /* 元素出栈 */
     let pop = stack.pop().unwrap();