diff --git a/C/source/CMakeLists.txt b/C/source/CMakeLists.txt
index 1c324fb..948d2f7 100644
--- a/C/source/CMakeLists.txt
+++ b/C/source/CMakeLists.txt
@@ -20,8 +20,9 @@ add_subdirectory(idgen)
 ##编译执行文件
 set(LIB_SRC YitIdHelper.h YitIdHelper.c)
 add_library(YitIdHelper ${LIB_SRC})
+
 add_executable(YitIdGen main.c)
-target_link_libraries(YitIdHelper idgen)
 target_link_libraries(YitIdGen YitIdHelper)
+target_link_libraries(YitIdGen idgen)
 
 
diff --git a/C/source/idgen/common.h b/C/source/idgen/common.h
index b4f15cf..3a27611 100644
--- a/C/source/idgen/common.h
+++ b/C/source/idgen/common.h
@@ -8,6 +8,6 @@
 #define TAP_DLLEXPORT __declspec(dllexport)
 #else
 #define TAP_CDECL
-#define TAP_DLLEXPORT __declspec(dllexport)
+#define TAP_DLLEXPORT
 #endif
 
diff --git a/C/source/main.c b/C/source/main.c
index 19221e1..39cf21e 100644
--- a/C/source/main.c
+++ b/C/source/main.c
@@ -16,7 +16,7 @@
 
 
 const int GenIdCount = 50000;
-const bool multiThread = false;
+const bool multiThread = true;
 const int threadCount = 50;
 const int method = 1;