diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index e8e1322f8ebf6d6451f2972f40d1c3eb091beb0e..9e962e34106ebeff7355d7642799ea51645d4b64 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -44,23 +44,27 @@ target_include_directories(hello
 
 target_link_libraries(hello ${LeanQT_Lib})
 
+# 定义生成 moc 文件的宏
+macro(generate_moc_files HEADER_FILES MOC_SOURCES LeanQt_Moc)
+  foreach(header_file ${HEADER_FILES})
+    get_filename_component(header_base ${header_file} NAME_WE)
+    set(moc_output "${CMAKE_CURRENT_BINARY_DIR}/clock_moc/moc_${header_base}.cpp")
+    add_custom_command(
+      OUTPUT ${moc_output}
+        COMMAND ${LeanQt_Moc} ${CMAKE_CURRENT_SOURCE_DIR}/${header_file} -o ${moc_output}
+        DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${header_file}
+      )
+    list(APPEND ${MOC_SOURCES} ${moc_output})
+  endforeach()
+endmacro()
 
 if(1)
 #disable clock now
 set(HEADER_FILES rasterwindow.h)
 
 set(MOC_SOURCES)
-# 为每个头文件生成对应的 moc 文件
-foreach(header_file ${HEADER_FILES})
-    get_filename_component(header_base ${header_file} NAME_WE)
-    set(moc_output "${CMAKE_CURRENT_BINARY_DIR}/clock_moc/moc_${header_base}.cpp")
-    add_custom_command(
-        OUTPUT ${moc_output}
-        COMMAND ${LeanQt_Moc} ${CMAKE_CURRENT_SOURCE_DIR}/${header_file} -o ${moc_output}
-        DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${header_file}
-    )
-    list(APPEND MOC_SOURCES ${moc_output})
-endforeach()
+# 调用宏生成 moc 文件
+generate_moc_files("${HEADER_FILES}" MOC_SOURCES ${LeanQt_Moc})
 
 
 set(clock_src rasterwindow.cpp clock.cpp ${MOC_SOURCES})