diff --git a/crazy_functions/latex_fns/latex_pickle_io.py b/crazy_functions/latex_fns/latex_pickle_io.py
index 451d735b..7b93ea87 100644
--- a/crazy_functions/latex_fns/latex_pickle_io.py
+++ b/crazy_functions/latex_fns/latex_pickle_io.py
@@ -4,12 +4,14 @@ import pickle
 class SafeUnpickler(pickle.Unpickler):
 
     def get_safe_classes(self):
-        from .latex_actions import LatexPaperFileGroup, LatexPaperSplit
+        from crazy_functions.latex_fns.latex_actions import LatexPaperFileGroup, LatexPaperSplit
+        from crazy_functions.latex_fns.latex_toolbox import LinkedListNode
         # 定义允许的安全类
         safe_classes = {
             # 在这里添加其他安全的类
             'LatexPaperFileGroup': LatexPaperFileGroup,
-            'LatexPaperSplit' : LatexPaperSplit,
+            'LatexPaperSplit': LatexPaperSplit,
+            'LinkedListNode': LinkedListNode,
         }
         return safe_classes
 
@@ -20,6 +22,8 @@ class SafeUnpickler(pickle.Unpickler):
         for class_name in self.safe_classes.keys():
             if (class_name in f'{module}.{name}'):
                 match_class_name = class_name
+        if module == 'numpy' or module.startswith('numpy.'):
+            return super().find_class(module, name)
         if match_class_name is not None:
             return self.safe_classes[match_class_name]
         # 如果尝试加载未授权的类，则抛出异常
diff --git a/tests/test_latex_auto_correct.py b/tests/test_latex_auto_correct.py
new file mode 100644
index 00000000..c51e7414
--- /dev/null
+++ b/tests/test_latex_auto_correct.py
@@ -0,0 +1,22 @@
+"""
+对项目中的各个插件进行测试。运行方法：直接运行 python tests/test_plugins.py
+"""
+
+
+import os, sys, importlib
+
+
+def validate_path():
+    dir_name = os.path.dirname(__file__)
+    root_dir_assume = os.path.abspath(dir_name + "/..")
+    os.chdir(root_dir_assume)
+    sys.path.append(root_dir_assume)
+
+
+validate_path()  # 返回项目根路径
+
+if __name__ == "__main__":
+    plugin_test = importlib.import_module('test_utils').plugin_test
+
+
+    plugin_test(plugin='crazy_functions.Latex_Function->Latex翻译中文并重新编译PDF', main_input="2203.01927")