diff --git a/SUMMARY.md b/SUMMARY.md
index 5542daf..6fb5c8f 100644
--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -15,9 +15,9 @@
    * [2.3. CGO编程基础](ch2-cgo/ch2-03-basic.md)
    * [2.4. CGO内存模型](ch2-cgo/ch2-04-memory.md)
    * [2.5. C++类包装](ch2-cgo/ch2-05-class.md)
-   * [2.6. 命令行工具和构建参数(TODO)](ch2-cgo/ch2-06-build.md)
-   * [2.7. 静态库和动态库(TODO)](ch2-cgo/ch2-07-dll.md)
-   * [2.8. 例子: 封装LevelDB(TODO)](ch2-cgo/ch2-08-leveldb.md)
+   * [2.6. CGO包的可移植性(TODO)](ch2-cgo/ch2-06-go-get-friendly.md)
+   * [2.7. Go实现Python模块(TODO)](ch2-cgo/ch2-07-py-module.md)
+   * [2.8. SWIG(TODO)](ch2-cgo/ch2-08-swig.md)
    * [2.9. 补充说明(TODO)](ch2-cgo/ch2-09-faq.md)
 * [第六章 Go和Web](ch6-web/readme.md)
    * [6.1. Web开发简介](ch6-web/ch6-01-introduction.md)
diff --git a/ch2-cgo/ch2-06-build.md b/ch2-cgo/ch2-06-build.md
deleted file mode 100644
index 7b37439..0000000
--- a/ch2-cgo/ch2-06-build.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# 2.6. 命令行工具和构建参数(TODO)
-
-TODO
diff --git a/ch2-cgo/ch2-06-go-get-friendly.md b/ch2-cgo/ch2-06-go-get-friendly.md
new file mode 100644
index 0000000..7f9525a
--- /dev/null
+++ b/ch2-cgo/ch2-06-go-get-friendly.md
@@ -0,0 +1,19 @@
+# 2.6. CGO包的可移植性(TODO)
+
+TODO
+
+<!--
+可移植的cgo
+
+小的cgo包直接内置c/c++代码
+
+1. copy到本目录
+
+2. 创建 include 文件
+
+很大的c包，全部内置会导致构建复杂化
+
+分2步，1 go generate 进行构建
+2 lib 包含
+
+-->
diff --git a/ch2-cgo/ch2-07-dll.md b/ch2-cgo/ch2-07-dll.md
deleted file mode 100644
index 4438923..0000000
--- a/ch2-cgo/ch2-07-dll.md
+++ /dev/null
@@ -1,4 +0,0 @@
-# 2.7 静态库和动态库(TODO)
-
-TODO
-
diff --git a/ch2-cgo/ch2-07-py-module.md b/ch2-cgo/ch2-07-py-module.md
new file mode 100644
index 0000000..65abd8c
--- /dev/null
+++ b/ch2-cgo/ch2-07-py-module.md
@@ -0,0 +1,9 @@
+# 2.7 Go实现Python模块(TODO)
+
+TODO
+
+<!--
+静态库和动态库
+
+实战: py 模块
+-->
diff --git a/ch2-cgo/ch2-08-leveldb.md b/ch2-cgo/ch2-08-leveldb.md
deleted file mode 100644
index d111388..0000000
--- a/ch2-cgo/ch2-08-leveldb.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# 2.8. 封装LevelDB(TODO)
-
-TODO
diff --git a/ch2-cgo/ch2-08-swig.md b/ch2-cgo/ch2-08-swig.md
new file mode 100644
index 0000000..fa74b72
--- /dev/null
+++ b/ch2-cgo/ch2-08-swig.md
@@ -0,0 +1,7 @@
+# 2.8. SWIG(TODO)
+
+TODO
+
+<!--
+swig 简单说明
+-->
diff --git a/ch2-cgo/ch2-09-faq.md b/ch2-cgo/ch2-09-faq.md
index 95b6fae..264511a 100644
--- a/ch2-cgo/ch2-09-faq.md
+++ b/ch2-cgo/ch2-09-faq.md
@@ -1,3 +1,11 @@
 # 2.9. 补充说明(TODO)
 
 TODO
+
+<!--
+cgo的风险和不足
+
+不要用c模拟Go字符串
+不要试图越过Go运行时的边界
+有些事情是不可为的，比如 bsearch 类似接口完全没有继承的价值（代价太高）
+-->