Unverified50% confidenceSolutionExact time
LangChain默认采用递归字符分块策略，兼顾长度与语义边界；滑动窗口策略通过相邻块保留重叠（Overlap）避免关键信息被割裂
1
Sources
50%
Confidence
Long-term
Relevance
7/13/2026
First Seen
Sources
LangChain in Practice: Building the ChatDoc Document Chat Application with RAG
bilibiliAI大模型-入门教程7/11/2026
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