> For the complete documentation index, see [llms.txt](https://yeasy.gitbook.io/context_engineering_guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le.md).

# 第二部分：核心技术与策略

- [第四章 上下文写入与存储](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/04_write.md)
- [4.1 外部存储与记忆系统](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/04_write/4.1_external_storage.md)
- [4.2 记忆架构设计](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/04_write/4.2_memory_architecture.md)
- [4.3 知识库构建与管理](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/04_write/4.3_knowledge_base.md)
- [4.4 向量数据库实践](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/04_write/4.4_vector_database.md)
- [本章小结](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/04_write/summary.md)
- [第五章 上下文选择与检索](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/05_select.md)
- [5.1 检索增强生成原理](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/05_select/5.1_rag_principles.md)
- [5.2 文档分块策略](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/05_select/5.2_chunking.md)
- [5.3 嵌入模型与语义搜索](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/05_select/5.3_embeddings.md)
- [5.4 重排序与相关性优化](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/05_select/5.4_reranking.md)
- [5.5 混合检索与高级检索增强生成](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/05_select/5.5_hybrid_search.md)
- [本章小结](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/05_select/summary.md)
- [第六章 上下文压缩与优化](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/06_compress.md)
- [6.1 信息密度与压缩原理](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/06_compress/6.1_compression_principles.md)
- [6.2 摘要与信息提取](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/06_compress/6.2_summarization.md)
- [6.3 对话历史管理](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/06_compress/6.3_conversation_history.md)
- [6.4 上下文窗口优化策略](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/06_compress/6.4_window_optimization.md)
- [6.5 压缩策略案例分析](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/06_compress/6.5_compression_cases.md)
- [本章小结](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/06_compress/summary.md)
- [第七章 上下文隔离与结构化](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/07_isolate.md)
- [7.1 结构化上下文设计](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/07_isolate/7.1_structured_context.md)
- [7.2 XML 标签与指令分层](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/07_isolate/7.2_xml_tags.md)
- [7.3 系统提示词设计](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/07_isolate/7.3_system_prompts.md)
- [7.4 多任务上下文隔离](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/07_isolate/7.4_task_isolation.md)
- [7.5 隔离策略案例分析](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/07_isolate/7.5_isolation_cases.md)
- [本章小结](https://yeasy.gitbook.io/context_engineering_guide/di-er-bu-fen-he-xin-ji-shu-yu-ce-le/07_isolate/summary.md)