#安装langchain环境
pip install langchain==0.3.3 openai -i https://mirrors.aliyun.com/pypi/simple 
#灵积模型服务
pip install dashscope -i https://mirrors.aliyun.com/pypi/simple   
#安装第三方集成,就是各种大语言模型
pip install langchain-community==0.3.2 -i https://mirrors.aliyun.com/pypi/simple 
#加载环境的工具  
pip install python-dotenv 

import osfrom langchain_community.llms import QianfanLLMEndpointos.environ["QIANFAN_AK"] = ""
os.environ["QIANFAN_SK"] = ""llm_wenxin = QianfanLLMEndpoint()res = llm_wenxin.invoke("中国国庆日是哪一天?")
print(res)