langchain教程LangChain is a framework for developing applications powered by language models. It enables applications that are: Data-aware: connect a language model to other sources of data Agentic: allow a language model to interact with its environment
slf4jThe Simple Logging Facade for Java (SLF4J) serves as a simple facade or abstraction for various logging frameworks (e.g. java.util.logging, logback, log4j) allowing the end user to plug in the desired logging framework at deployment time.