diff --git a/main.cpp b/main.cpp
index 4a63d2c..419184b 100644
--- a/main.cpp
+++ b/main.cpp
@@ -5,8 +5,7 @@
 
 #define   K_VISION_DIR   "/hard/k_vision"
 #define   AI_VISION_DIR  "/hard/ai_vision"
-#define   BEGIN_TIME_INTERVAL 8
-#define   END_TIME_INTERVAL   12
+
 
 std::vector<std::string> get_file_names(const std::string& strDir)
 {
@@ -110,7 +109,21 @@ std::string cvt_filename_to_datetime(const std::string& strFileName)
 }
 
 
-int main() {
+int main(int argc, char* argv[]) {
+    int nParam[2] = {0};
+    if (argc != 3)
+    {
+        std::cout << "error: input param invalid" << std::endl;
+        std::cout << "usage: ./ajx_find_files 8 12" << std::endl;
+        return -1;
+    }
+    else
+    {
+        nParam[0] = std::atoi(argv[1]);
+        nParam[1] = std::atoi(argv[2]);
+        std::cout << "command-line: " << argv[0] << " " << argv[1] << " " << argv[2] << std::endl; 
+    }
+
     auto tt = time(nullptr);
     auto tm = localtime(&tt);
     char szSaveDir[255];
@@ -130,7 +143,7 @@ int main() {
     {
         ++j;
         auto datetime = cvt_filename_to_datetime(it);
-        auto vec_search_path = get_search_paths(it, BEGIN_TIME_INTERVAL, END_TIME_INTERVAL);
+        auto vec_search_path = get_search_paths(it, nParam[0], nParam[1]);
         for (auto dir:vec_search_path)
         {
             auto vec_file_path = get_file_paths(dir);