diff --git a/README.md b/README.md
index 5ae9696..20dddf2 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 视频在video文件夹中。
 
 ## 实验一——时钟滴答
-<video src="video/exp1.mp4"></video>
+<video controls src="video/exp1.mp4"></video>
 
 ## 实验二——流水灯
-<video src="video/exp1.mp4"></video>
+<video controls src="video/exp2.mp4"></video>