diff --git a/problems/0225.用队列实现栈.md b/problems/0225.用队列实现栈.md
index fdb544a6..524ca329 100644
--- a/problems/0225.用队列实现栈.md
+++ b/problems/0225.用队列实现栈.md
@@ -46,7 +46,7 @@
 
 模拟的队列执行语句如下：      
 
-```
+```cpp
 queue.push(1);        
 queue.push(2);        
 queue.pop();   // 注意弹出的操作       
diff --git a/problems/0232.用栈实现队列.md b/problems/0232.用栈实现队列.md
index 4edba2f2..0e4fce28 100644
--- a/problems/0232.用栈实现队列.md
+++ b/problems/0232.用栈实现队列.md
@@ -21,7 +21,7 @@ empty() -- 返回队列是否为空。
 
 示例:
 
-```
+```cpp
 MyQueue queue = new MyQueue();
 queue.push(1);
 queue.push(2);