diff --git a/problems/0046.全排列.md b/problems/0046.全排列.md
index 0b3174f0..373c9257 100644
--- a/problems/0046.全排列.md
+++ b/problems/0046.全排列.md
@@ -147,6 +147,7 @@ public:
 
 
 Java：
+```java
 class Solution {
 	List<List<Integer>> result=new ArrayList<List<Integer>>();
 	Deque<Integer> path=new LinkedList<Integer>();
@@ -171,7 +172,7 @@ class Solution {
     	return result;
     }
 }
-
+```
 
 Python：