diff --git a/yonglin_zhang/C/dep/CMakeLists.txt b/yonglin_zhang/C/dep/CMakeLists.txt
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..77efc20f6bcfe9208bfc5433451dba02f76437ec 100644
--- a/yonglin_zhang/C/dep/CMakeLists.txt
+++ b/yonglin_zhang/C/dep/CMakeLists.txt
@@ -0,0 +1 @@
+add_library(alg_debg SHARED alg_debug.c)
\ No newline at end of file
diff --git a/yonglin_zhang/C/dep/alg_debug.c b/yonglin_zhang/C/dep/alg_debug.c
new file mode 100644
index 0000000000000000000000000000000000000000..4c19d137ffdae278d103f12c9fad820a735abc2e
--- /dev/null
+++ b/yonglin_zhang/C/dep/alg_debug.c
@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include <string.h>
+#include "alg_debug.h"
+
+static char debug_path[256] = { 0 };
+
+void set_debug_info_path(char *path)
+{
+    memcpy(debug_path, path, strlen(path));
+}
+
+void debug_infpo(char *info)
+{
+    FILE *debug = NULL;
+    char filename[270] = { 0 };
+
+    sprintf(filename, "%s/debug.txt", debug_path);
+
+    debug = fopen(filename, "a");
+    fprintf(debug, "%s", info);
+    fclose(debug);
+}
\ No newline at end of file
diff --git a/yonglin_zhang/C/dep/alg_debug.h b/yonglin_zhang/C/dep/alg_debug.h
new file mode 100644
index 0000000000000000000000000000000000000000..1be7e78f3d6e6cf8b72847b4f649389da4f83d8b
--- /dev/null
+++ b/yonglin_zhang/C/dep/alg_debug.h
@@ -0,0 +1,28 @@
+/**
+ * \file alg_debug.h
+ *
+ * \brief debug信息功能
+ */
+
+#ifndef ALG_DEBUG_H
+#define ALG_DEBUG_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef DEBUG
+#define ALG_DEBUG(X) debug_info(X)
+#else
+#define ALG_DEBUG(X)
+#endif
+
+void set_debug_info_path(char *path);
+
+void debug_info(char *info);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ALG_DEBUG_H */
diff --git a/yonglin_zhang/C/link_list/src/CMakeLists.txt b/yonglin_zhang/C/link_list/src/CMakeLists.txt
index 018b8dc1c04cade6c15057588b70f3f6d8f7cfbf..3a44a5141cd63b3619681043de6f0949a42bf29f 100644
--- a/yonglin_zhang/C/link_list/src/CMakeLists.txt
+++ b/yonglin_zhang/C/link_list/src/CMakeLists.txt
@@ -10,7 +10,16 @@ set(INCLUDE_DIRS
     "${CMAKE_CURRENT_SOURCE_DIR}/../include"
     "${CMAKE_CURRENT_SOURCE_DIR}/../../dep"
 )
+#[[
+set(DEP_LIB_DIR
+    "${CMAKE_CURRENT_SOURCE_DIR}/../../dep"
+)
 
+set(DEP_LIBS
+    alg_debug
+)
+#]]
 include_directories(${INCLUDE_DIRS})
+#link_directories(${DEP_LIBS})
 
 add_library(link_list SHARED ${LIB_SOURCES})