diff --git a/01-basic/1.4  Shared Library.md b/01-basic/1.4  Shared Library.md
index 032bbd5..f374084 100644
--- a/01-basic/1.4  Shared Library.md	
+++ b/01-basic/1.4  Shared Library.md	
@@ -76,6 +76,10 @@ int main(int argc, char *argv[])
 ```cmake
 cmake_minimum_required(VERSION 3.5)
 project(hello_library)
+#windows平台同时也要需要生成lib文件
+if(WIN32)
+    set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
+endif()
 ############################################################
 # Create a library
 ############################################################