diff --git a/codes/rust/include/vertex.rs b/codes/rust/include/vertex.rs
index 5aa3a6b5e..c4e941e6c 100644
--- a/codes/rust/include/vertex.rs
+++ b/codes/rust/include/vertex.rs
@@ -7,7 +7,7 @@
 /* 顶点类型 */
 #[derive(Copy, Clone, Hash, PartialEq, Eq)]
 pub struct Vertex {
-    pub val: i32
+    pub val: i32,
 }
 
 /* 输入值列表 vals ，返回顶点列表 vets */
@@ -18,4 +18,4 @@ pub fn vals_to_vets(vals: Vec<i32>) -> Vec<Vertex> {
 /* 输入顶点列表 vets ，返回值列表 vals */
 pub fn vets_to_vals(vets: Vec<Vertex>) -> Vec<i32> {
     vets.into_iter().map(|vet| vet.val).collect()
-}
\ No newline at end of file
+}