Files
agent-craft/04_langchain_basics/02_prompt.py
T
2025-10-30 18:52:51 +08:00

33 lines
462 B
Python

import os
from dotenv import load_dotenv
load_dotenv()
api_key = os.getenv("OPENAI_API_KEY")
from langchain_core.prompts import ChatPromptTemplate
# 定义提示词模板(推荐写法)
prompt = ChatPromptTemplate.from_messages([
("system","你非常可爱,说话末尾会带个喵"),
("human","{input}") # {input}:占位符
])
# 格式化输出
formatted_prompt = prompt.invoke({"input":"你好喵"})
print(formatted_prompt)