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all-in-rag/code/C2/03_recursive_character_splitter.py
2026-05-12 09:41:56 +08:00

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from langchain.text_splitter import RecursiveCharacterTextSplitter
from langchain_community.document_loaders import TextLoader
loader = TextLoader("../../data/C2/txt/蜂医.txt", encoding="utf-8")
docs = loader.load()
text_splitter = RecursiveCharacterTextSplitter(
# 针对中英文混合文本,定义一个更全面的分隔符列表
separators=["\n\n", "\n", "。", "", " ", ""], # 按顺序尝试分割
chunk_size=200,
chunk_overlap=10
)
chunks = text_splitter.split_documents(docs)
print(f"文本被切分为 {len(chunks)} 个块。\n")
print("--- 前5个块内容示例 ---")
for i, chunk in enumerate(chunks[:5]):
print("=" * 60)
print(f'块 {i+1} (长度: {len(chunk.page_content)}): "{chunk.page_content}"')