初始提交，未完全测试

template/io/WriterBuffer.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python3.9
+# -*- coding: utf-8 -*-
+"""
+JFinal WriterBuffer - Writer Buffer
+"""
+
+class WriterBuffer:
+    """Writer buffer for template output"""
+    
+    def __init__(self):
+        """Initialize writer buffer"""
+        self._encoding = "UTF-8"
+        self._buffer_size = 8192
+        self._reentrant_buffer_size = 1024
+        self._encoder_factory = None
+    
+    def set_encoding(self, encoding: str):
+        """Set encoding"""
+        self._encoding = encoding
+        if self._encoder_factory:
+            # Set encoding on encoder factory if available
+            pass
+    
+    def set_buffer_size(self, buffer_size: int):
+        """Set buffer size"""
+        self._buffer_size = buffer_size
+    
+    def set_reentrant_buffer_size(self, reentrant_buffer_size: int):
+        """Set reentrant buffer size"""
+        self._reentrant_buffer_size = reentrant_buffer_size
+    
+    def set_encoder_factory(self, encoder_factory):
+        """Set encoder factory"""
+        self._encoder_factory = encoder_factory
+    
+    def get_encoding(self) -> str:
+        """Get encoding"""
+        return self._encoding
+    
+    def get_buffer_size(self) -> int:
+        """Get buffer size"""
+        return self._buffer_size
+    
+    def get_reentrant_buffer_size(self) -> int:
+        """Get reentrant buffer size"""
+        return self._reentrant_buffer_size
+    
+    def get_encoder_factory(self):
+        """Get encoder factory"""
+        return self._encoder_factory
+    
+    def __repr__(self) -> str:
+        return f"WriterBuffer(encoding={self._encoding}, buffer_size={self._buffer_size})"