diff --git a/PyPI/setup.cfg b/PyPI/setup.cfg
index 388ea7a..510432c 100644
--- a/PyPI/setup.cfg
+++ b/PyPI/setup.cfg
@@ -1,7 +1,7 @@
 [metadata]
 # replace with your username:
 name = guan
-version = 0.1.159
+version = 0.1.160
 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 64752fc..1ec2a49 100644
--- a/PyPI/src/guan.egg-info/PKG-INFO
+++ b/PyPI/src/guan.egg-info/PKG-INFO
@@ -1,6 +1,6 @@
 Metadata-Version: 2.2
 Name: guan
-Version: 0.1.159
+Version: 0.1.160
 Summary: An open source python package
 Home-page: https://py.guanjihuan.com
 Author: guanjihuan
diff --git a/PyPI/src/guan/functions_using_objects_of_custom_classes.py b/PyPI/src/guan/functions_using_objects_of_custom_classes.py
index 1df4c3f..412a1a5 100644
--- a/PyPI/src/guan/functions_using_objects_of_custom_classes.py
+++ b/PyPI/src/guan/functions_using_objects_of_custom_classes.py
@@ -9,6 +9,22 @@ def get_coordinate_array_from_atom_object_list(atom_object_list):
         coordinate_array.append([x, y])
     return coordinate_array
 
+# 从原子对象列表中获取 x 和 y 的最大值和最小值
+def get_max_min_x_y_from_atom_object_list(atom_object_list):
+    import guan
+    coordinate_array = guan.get_coordinate_array_from_atom_object_list(atom_object_list)
+    x_array = []
+    for coordinate in coordinate_array:
+        x_array.append(coordinate[0])
+    y_array = []
+    for coordinate in coordinate_array:
+        y_array.append(coordinate[1])
+    max_x = max(x_array)
+    min_x = min(x_array)
+    max_y = max(y_array)
+    min_y = min(y_array)
+    return max_x, min_x, max_y, min_y
+
 # 根据原子对象列表来初始化哈密顿量
 def initialize_hamiltonian_from_atom_object_list(atom_object_list):
     import numpy as np