diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..f8ff2b5
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+*.mp4 filter=lfs diff=lfs merge=lfs -text
diff --git a/.gitignore b/.gitignore
index a9b3aef..76e541e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,4 +11,6 @@
 !*/MDK-ARM/startup_*.s
 !*.ioc
 !.mxproject
+!video/
+!video/*
 # !*.uvprojx
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..5ae9696
--- /dev/null
+++ b/README.md
@@ -0,0 +1,7 @@
+视频在video文件夹中。
+
+## 实验一——时钟滴答
+<video src="video/exp1.mp4"></video>
+
+## 实验二——流水灯
+<video src="video/exp1.mp4"></video>
diff --git a/video/exp1.mp4 b/video/exp1.mp4
new file mode 100644
index 0000000..a66f822
--- /dev/null
+++ b/video/exp1.mp4
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e79e788676e28cfc00dbc0eff1b6cdeee73a96343de9ee629ad69c9b3f7e62cf
+size 4210006
diff --git a/video/exp2.mp4 b/video/exp2.mp4
new file mode 100644
index 0000000..13ccf02
--- /dev/null
+++ b/video/exp2.mp4
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a4a9e8ae020f72c8edefc8a017673526b21bc76fde74cc9c14093197e1d7722a
+size 4412490