diff --git a/CMakeLists.txt b/CMakeLists.txt
index 887bb43..6c411f9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,4 +8,5 @@ endif()
 add_subdirectory(stbiw)
 
 add_executable(main main.cpp rainbow.cpp mandel.cpp)
+# add_executable(main main.cpp rainbow.cpp)
 target_link_libraries(main PUBLIC stbiw)
diff --git a/stbiw/CMakeLists.txt b/stbiw/CMakeLists.txt
index b56b853..bf98400 100644
--- a/stbiw/CMakeLists.txt
+++ b/stbiw/CMakeLists.txt
@@ -1 +1,3 @@
-message(FATAL_ERROR "请修改 stbiw/CMakeLists.txt！要求生成一个名为 stbiw 的库")
+# message(FATAL_ERROR "请修改 stbiw/CMakeLists.txt！要求生成一个名为 stbiw 的库")
+add_library(stbiw STATIC stb_image_write.h stb_image_write.cpp)
+target_include_directories(stbiw PUBLIC .)
diff --git a/stbiw/stb_image_write.cpp b/stbiw/stb_image_write.cpp
new file mode 100644
index 0000000..2009b05
--- /dev/null
+++ b/stbiw/stb_image_write.cpp
@@ -0,0 +1,2 @@
+#define STB_IMAGE_WRITE_IMPLEMENTATION
+#include "stb_image_write.h"
\ No newline at end of file
diff --git a/stbiw/stb_image_write.h b/stbiw/stb_image_write.h
index e4b32ed..aeff0b2 100644
--- a/stbiw/stb_image_write.h
+++ b/stbiw/stb_image_write.h
@@ -147,7 +147,7 @@ LICENSE
   See end of file for license information.
 
 */
-
+#pragma once
 #ifndef INCLUDE_STB_IMAGE_WRITE_H
 #define INCLUDE_STB_IMAGE_WRITE_H