diff --git a/README.md b/README.md
index b35c141..9ea081c 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@
 可，其他代码不需要任何改动。
 
 ### 示例代码
-```
+```python
 import time
 from concurrent.futures import ProcessPoolExecutor, ThreadPoolExecutor