diff --git a/SUMMARY.md b/SUMMARY.md
index cafbfa1..883272e 100644
--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -6,3 +6,5 @@
   * [S1 - 代码结构](dev/s1-dai-ma-jie-gou.md)
   * [S2 - 通信协议](dev/s2-tong-xin-xie-yi.md)
   * [S3 - shell](dev/s3-shell.md)
+  * [S4 - vnc原理](dev/s4-vnc-yuan-li.md)
+  * [S5 - vnc实现](dev/s5-vnc-shi-xian.md)
diff --git a/dev/s4-vnc-yuan-li.md b/dev/s4-vnc-yuan-li.md
new file mode 100644
index 0000000..a64ec97
--- /dev/null
+++ b/dev/s4-vnc-yuan-li.md
@@ -0,0 +1,2 @@
+# S4 - vnc原理
+
diff --git a/dev/s5-vnc-shi-xian.md b/dev/s5-vnc-shi-xian.md
new file mode 100644
index 0000000..138ed9b
--- /dev/null
+++ b/dev/s5-vnc-shi-xian.md
@@ -0,0 +1,2 @@
+# S5 - vnc实现
+