diff --git a/PyPI/setup.cfg b/PyPI/setup.cfg
index 9567d60..f8916ae 100644
--- a/PyPI/setup.cfg
+++ b/PyPI/setup.cfg
@@ -1,7 +1,7 @@
 [metadata]
 # replace with your username:
 name = guan
-version = 0.1.199
+version = 0.1.200
 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 c3f6edc..a3ec3d2 100644
--- a/PyPI/src/guan.egg-info/PKG-INFO
+++ b/PyPI/src/guan.egg-info/PKG-INFO
@@ -1,6 +1,6 @@
 Metadata-Version: 2.4
 Name: guan
-Version: 0.1.199
+Version: 0.1.200
 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 2f9199f..8b22517 100644
--- a/PyPI/src/guan/data_processing.py
+++ b/PyPI/src/guan/data_processing.py
@@ -11,6 +11,16 @@ def logging_with_day_and_time(content='', filename='time_logging', file_format='
        else:
            f2.write(datetime_today+' '+datetime_time+' '+str(content)+'\n')
 
+# 获取当前位置的 Unix 时间戳，并打印某段程序的运行时间
+def record_time_and_print_running_time(start_time=None):
+    import time
+    current_time = time.time()
+    if start_time == None:
+      print("\n--- 开始计时（第一个记录点）---\n")
+    else:
+      print(f"\n--- 自上一个记录点已运行: {current_time - start_time:.2f} 秒 ---\n")
+    return current_time
+
 # 使用该函数运行某个函数并获取函数计算时间（秒）
 def timer(function_name, *args, **kwargs):
     import time
diff --git a/PyPI/src/guan/others.py b/PyPI/src/guan/others.py
index 17ac539..f652d4f 100644
--- a/PyPI/src/guan/others.py
+++ b/PyPI/src/guan/others.py
@@ -126,6 +126,29 @@ def get_links_from_pdf(pdf_path, link_starting_form=''):
                                 old = u['/A']['/URI']
     return links
 
+# 将某个文件夹中的某个类型的文本文件全部修改为另外一个编码，其他文件不变
+def convert_file_encoding_for_one_directory(source_directory, target_directory, file_formats=['.m'], src_encoding='utf-8', dst_encoding='gb18030'):
+    import os
+    import shutil
+    os.makedirs(target_directory, exist_ok=True)
+    for root, dirs, files in os.walk(source_directory):
+        rel_path = os.path.relpath(root, source_directory) 
+        target_subdir = os.path.join(target_directory, rel_path) if rel_path != '.' else target_directory
+        os.makedirs(target_subdir, exist_ok=True)
+        for file in files:
+            src_file = os.path.join(root, file)
+            dst_file = os.path.join(target_subdir, file)
+            if any(file.lower().endswith(ext.lower()) for ext in file_formats):
+                try:
+                    with open(src_file, 'r', encoding=src_encoding) as f:
+                        content = f.read()
+                    with open(dst_file, 'w', encoding=dst_encoding) as f:
+                        f.write(content)
+                except Exception as e:
+                    shutil.copy2(src_file, dst_file)
+            else:
+                shutil.copy2(src_file, dst_file)
+
 # 获取当前日期字符串
 def get_date(bar=True):
     import datetime