diff --git a/docs/编程入门/CS50.md b/docs/编程入门/CS50.md
index ea41d780..c3a61192 100644
--- a/docs/编程入门/CS50.md
+++ b/docs/编程入门/CS50.md
@@ -12,7 +12,7 @@
 
 ## 课程资源
 
-- 课程网站：<https://cs50.harvard.edu/x/2023/>
-- 课程视频：<https://cs50.harvard.edu/x/2023/>
+- 课程网站：[2022](https://cs50.harvard.edu/x/2022/), [2023](https://cs50.harvard.edu/x/2023/)
+- 课程视频：[2022](https://cs50.harvard.edu/x/2022/), [2023](https://cs50.harvard.edu/x/2023/)
 - 课程教材：无
-- 课程作业：<https://cs50.harvard.edu/x/2023/>
+- 课程作业：[2022](https://cs50.harvard.edu/x/2022/), [2023](https://cs50.harvard.edu/x/2023/)