diff --git a/CMakelists.txt b/CMakelists.txt
index 5f0c9ae..0c1e40e 100644
--- a/CMakelists.txt
+++ b/CMakelists.txt
@@ -1,7 +1,21 @@
 
+# cmake 最低版本号要求
 cmake_minimum_required(VERSION 3.8)
 
+# 项目信息
 project(demo)
+
+# 查找当前目录下的所有文件
+# 并将名称保存在DIR_SRC中
 aux_source_directory(. DIR_SRC)
 
+# 添加子目录
+add_subdirectory(src)
+
+# 添加头文件路径
+include_directories(src)
+
+# 指定生成目标
 add_executable(demo  ${DIR_SRC})
+
+target_link_libraries(demo list)
diff --git a/main.c b/main.c
index 3365622..5783c33 100644
--- a/main.c
+++ b/main.c
@@ -3,68 +3,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-typedef struct list_t
-{
-    uint8_t  data;
-    struct list_t *next;
-} list_t;
-
-void list_init(struct list_t *list)
-{
-    list->data = 0;
-    list->next = NULL;
-}
-
-void list_add(struct list_t *list, uint8_t data)
-{
-    struct list_t *p = NULL;
-    p = list;
-    while (p->next != NULL)
-    {
-        p = p->next;
-        if (p->data == data)
-        {
-            return;
-        }
-    }
-    p->next = (struct list_t *)malloc(sizeof(struct list_t));
-    p->next->data = data;
-    p->next->next = NULL;
-    return;
-}
-
-void list_print(struct list_t *list)
-{
-    struct list_t *p = NULL;
-    p = list;
-    while (p->next != NULL)
-    {
-        printf("%02d\n", p->data);
-        p = p->next;
-        if (p->next == NULL)
-        {
-            printf("%02d\n", p->data);
-            break;
-        }
-    }
-}
-
-void list_free(struct list_t *list)
-{
-    struct list_t *p = NULL;
-    p = list;
-    while (p->next != NULL)
-    {
-        p = p->next;
-        free(p->next);
-        p->next = NULL;
-        if (p->next == NULL)
-        {
-            break;
-        }
-    }
-}
-
+#include "list.h"
 
 void list_demo(void)
 {
@@ -81,24 +20,16 @@ void list_demo(void)
 void main(int arg, char *argv[])
 {
 #if 0
-    uint32_t i = 0;
-    for (i = 0; i < 10; ++i)
-    {
-        printf("%02d\n", i);
-    }
-    printf("\n");
+    struct list_t list;
+    list_init(&list);
     
-    printf("Hello World!\n");
+    list_add(&list, 1);
+    list_add(&list, 2);
+    list_add(&list, 3);
+    list_add(&list, 4);
+
+    list_print(&list);
 #else
-    // struct list_t list;
-    // list_init(&list);
-    // list_add(&list, 1);
-    // list_add(&list, 2);
-    // list_add(&list, 3);
-    // list_add(&list, 4);
-
-    // list_print(&list);
-
     list_demo();
 #endif
 }
diff --git a/src/CMakelists.txt b/src/CMakelists.txt
new file mode 100644
index 0000000..29f2e5a
--- /dev/null
+++ b/src/CMakelists.txt
@@ -0,0 +1,6 @@
+
+# 当前目录下的文件 -> 写入变量
+aux_source_directory(. DIR_LIB_SRC)
+
+# 生成链接库
+add_library(list ${DIR_LIB_SRC})
diff --git a/src/list.c b/src/list.c
new file mode 100644
index 0000000..979a085
--- /dev/null
+++ b/src/list.c
@@ -0,0 +1,58 @@
+
+#include "list.h"
+
+void list_init(struct list_t *list)
+{
+    list->data = 0;
+    list->next = NULL;
+}
+
+void list_add(struct list_t *list, uint8_t data)
+{
+    struct list_t *p = NULL;
+    p = list;
+    while (p->next != NULL)
+    {
+        p = p->next;
+        if (p->data == data)
+        {
+            return;
+        }
+    }
+    p->next = (struct list_t *)malloc(sizeof(struct list_t));
+    p->next->data = data;
+    p->next->next = NULL;
+    return;
+}
+
+void list_print(struct list_t *list)
+{
+    struct list_t *p = NULL;
+    p = list;
+    while (p->next != NULL)
+    {
+        printf("%02d\n", p->data);
+        p = p->next;
+        if (p->next == NULL)
+        {
+            printf("%02d\n", p->data);
+            break;
+        }
+    }
+}
+
+void list_free(struct list_t *list)
+{
+    struct list_t *p = NULL;
+    p = list;
+    while (p->next != NULL)
+    {
+        p = p->next;
+        free(p->next);
+        p->next = NULL;
+        if (p->next == NULL)
+        {
+            break;
+        }
+    }
+}
diff --git a/src/list.h b/src/list.h
new file mode 100644
index 0000000..82f925c
--- /dev/null
+++ b/src/list.h
@@ -0,0 +1,20 @@
+
+#ifndef _LIST_H_
+#define _LIST_H_
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+typedef struct list_t
+{
+    uint8_t  data;
+    struct list_t *next;
+} list_t;
+
+void list_init(struct list_t *list);
+void list_add(struct list_t *list, uint8_t data);
+void list_print(struct list_t *list);
+void list_free(struct list_t *list);
+
+#endif
diff --git a/src/test.c b/src/test.c
deleted file mode 100644
index 2dd625e..0000000
--- a/src/test.c
+++ /dev/null
@@ -1,8 +0,0 @@
-
-#include "test.h"
-#include <stdio.h>
-
-void test()
-{
-    printf("test\n");
-}