diff --git a/problems/0200.岛屿数量.深搜版.md b/problems/0200.岛屿数量.深搜版.md
index aaead2a7..905c0979 100644
--- a/problems/0200.岛屿数量.深搜版.md
+++ b/problems/0200.岛屿数量.深搜版.md
@@ -282,7 +282,7 @@ class Solution:
 Rust:
 
 
-use std::collections::VecDeque;
+```rust
 impl Solution {
     const DIRECTIONS: [(i32, i32); 4] = [(0, 1), (1, 0), (-1, 0), (0, -1)];
     pub fn num_islands(grid: Vec<Vec<char>>) -> i32 {
@@ -312,8 +312,8 @@ impl Solution {
             }
         }
     }
-
 }
+```
 
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