diff --git a/PyPI/setup.cfg b/PyPI/setup.cfg
index 3c4b536..138d616 100644
--- a/PyPI/setup.cfg
+++ b/PyPI/setup.cfg
@@ -1,7 +1,7 @@
 [metadata]
 # replace with your username:
 name = guan
-version = 0.1.46
+version = 0.1.47
 author = guanjihuan
 author_email = guanjihuan@163.com
 description = An open source python package
diff --git a/PyPI/src/guan.egg-info/PKG-INFO b/PyPI/src/guan.egg-info/PKG-INFO
index 2ba2d9b..4ff679e 100644
--- a/PyPI/src/guan.egg-info/PKG-INFO
+++ b/PyPI/src/guan.egg-info/PKG-INFO
@@ -1,6 +1,6 @@
 Metadata-Version: 2.1
 Name: guan
-Version: 0.1.46
+Version: 0.1.47
 Summary: An open source python package
 Home-page: https://py.guanjihuan.com
 Author: guanjihuan
diff --git a/PyPI/src/guan/data_processing.py b/PyPI/src/guan/data_processing.py
index f2fd742..6c1f25d 100644
--- a/PyPI/src/guan/data_processing.py
+++ b/PyPI/src/guan/data_processing.py
@@ -646,7 +646,20 @@ def print_array_with_index(array, show_index=1, index_type=0):
     import guan
     guan.statistics_of_guan_package()
 
-# 读取文件夹中某个文件类型的所有文本文件
+# 获取目录中的所有文件名
+def get_all_filenames_in_directory(directory='./', file_format=None):
+    import os
+    file_list = []
+    for root, dirs, files in os.walk(directory):
+        for i0 in range(len(files)):
+            if file_format == None:
+                file_list.append(files[i0])
+            else:
+                if file_format in files[i0]:
+                    file_list.append(files[i0])
+    return file_list
+
+# 读取文件夹中某种文本文件类型的文件路径和内容
 def read_text_files_in_directory(directory='./', file_format='.md'):
     import os
     file_list = []