polish rust (#1790)

* polish graph * Update graph
2025-11-01 03:24:24 +08:00 · 2025-08-04 14:45:14 +08:00
parent 83a806a602
commit 0918fd06f2
3 changed files with 12 additions and 20 deletions
--- a/codes/rust/chapter_graph/graph_bfs.rs
+++ b/codes/rust/chapter_graph/graph_bfs.rs
@ -22,8 +22,7 @@ fn graph_bfs(graph: GraphAdjList, start_vet: Vertex) -> Vec<Vertex> {
    let mut que = VecDeque::new();
    que.push_back(start_vet);
    // 以顶点 vet 为起点，循环直至访问完所有顶点
-    while !que.is_empty() {
-        let vet = que.pop_front().unwrap(); // 队首顶点出队
+    while let Some(vet) = que.pop_front() {
        res.push(vet); // 记录访问顶点

        // 遍历该顶点的所有邻接顶点