diff --git a/language_learning/2022.09.12_creat_necessary_file_or_delete_file_with_specific_name/creat_necessary_file_or_delete_file_with_specific_name.py b/language_learning/2022.09.12_creat_necessary_file_or_delete_file_with_specific_name/creat_necessary_file_or_delete_file_with_specific_name.py
new file mode 100644
index 0000000..410e03c
--- /dev/null
+++ b/language_learning/2022.09.12_creat_necessary_file_or_delete_file_with_specific_name/creat_necessary_file_or_delete_file_with_specific_name.py
@@ -0,0 +1,34 @@
+def main():
+    directory = 'E:/test'
+    creat_necessary_file(directory)
+    # delete_file_with_specific_name(directory)
+
+    # import guan
+    # guan.creat_necessary_file(directory)
+    # guan.delete_file_with_specific_name(directory)
+
+
+def creat_necessary_file(directory, filename='readme', file_format='.md', content=''):
+    import os
+    directory_with_file = []
+    for root, dirs, files in os.walk(directory):
+        for i0 in range(len(files)):
+            if root not in directory_with_file:
+                directory_with_file.append(root)
+    for root in directory_with_file:
+        os.chdir(root)
+        f = open(filename+file_format, 'w', encoding="utf-8")
+        f.write(content)
+        f.close()
+    
+
+def delete_file_with_specific_name(directory, filename='readme', file_format='.md'):
+      import os
+      for root, dirs, files in os.walk(directory):
+        for i0 in range(len(files)):
+            if files[i0] == filename+file_format:
+                os.remove(root+'/'+files[i0])
+
+
+if __name__ == '__main__':
+    main()
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