You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
36 lines
1.1 KiB
36 lines
1.1 KiB
from langchain_core.messages import HumanMessage
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from langchain_core.prompts import PromptTemplate, FewShotPromptTemplate, ChatPromptTemplate, MessagesPlaceholder
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from langchain_openai import ChatOpenAI
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from env_util import DASHSCOPE_API_KEY, DASHSCOPE_BASE_URL
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# llm对象就是调用大模型的对象
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llm = ChatOpenAI(
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model = "qwen-plus",
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base_url=DASHSCOPE_BASE_URL,
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api_key=DASHSCOPE_API_KEY,
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temperature=0.8,
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);
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# {topic}：变量占位符
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# MessagesPlaceholder("msg") 消息占位符
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# ("system","你是一个相声演员")
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# 单个变量方式
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# prompt_template = ChatPromptTemplate.from_messages([
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# ("system","你是一个相声演员"), # 给大模型一个定位
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# ("user","给我来段{topic}") # 需要用户输入一个变量
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# ])
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# 全部内容由用户输入的方式
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prompt_template = ChatPromptTemplate.from_messages([
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("system","你是一个相声演员"), # 给大模型一个定位
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MessagesPlaceholder("input") # 需要用户完整输入
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])
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chain = prompt_template | llm
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resp = chain.invoke({"input": [HumanMessage(content = "给我来段贯口")]})
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print(resp) |