langchain学习-整合openai

from langchain_core.messages import SystemMessage, HumanMessage
from langchain_core.prompts import ChatPromptTemplate
from langchain_openai import ChatOpenAI
from langchain_core.output_parsers import StrOutputParser

prompt = ChatPromptTemplate.from_messages([
    SystemMessage(content="你是一位变成专家擅长解决所有编程中遇到的问题"),
    HumanMessage(content="{input}")
])

output_parser = StrOutputParser()

llm_model = ChatOpenAI(api_key=" 换成自己的key  ",base_url="https://api.deepseek.com/v1",model="deepseek-chat")

llm = llm_model | output_parser

result = llm.invoke(input="langchain可以做什么，顺便告诉我你是什么模型？")

print(result)