初始提交，未完全测试

template/ext/sharedmethod/SharedMethodLib.py

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+#!/usr/bin/env python3.9
+# -*- coding: utf-8 -*-
+"""
+JFinal SharedMethodLib - Shared Method Library
+"""
+
+class SharedMethodLib:
+    """Shared method library for template functions"""
+    
+    def __init__(self):
+        """Initialize shared method library"""
+        pass
+    
+    def add_shared_method(self, method_name: str, method):
+        """Add shared method"""
+        pass
+    
+    def get_shared_method(self, method_name: str):
+        """Get shared method by name"""
+        return None
+    
+    def has_shared_method(self, method_name: str) -> bool:
+        """Check if shared method exists"""
+        return False
+    
+    def __repr__(self) -> str:
+        return "SharedMethodLib()"

template/ext/sharedmethod/__init__.py

@@ -0,0 +1 @@
+# Python package initialization