### 安装langchain ```shell (base) [root@localhost langchain]# conda activate langchain (langchain) [root@localhost home]# pip3 install langchain_openai ``` ### 创建DeepSeek api key 进入DeepSeek官网并创建api key：https://platform.deepseek.com/api_keys ### 创建langchain任务 langchain_deepseek.py ```python from langchain_openai import ChatOpenAI llm = ChatOpenAI( model = 'deepseek-chat', openai_api_key = 'sk-53fd86c8***********************', openai_api_base = 'https://api.deepseek.com', max_tokens=1024, temperature=1 ) response = llm.invoke("请问今天的日期是什么?") print(response.content) ``` ### 执行任务 ```shell (langchain) [root@localhost langchain]# python3 langchain_deepseek.py 今天是 **2025 年 2 月 3 日**。 ```