update

2025.11.02_langchain/langchain_example.py

@@ -3,7 +3,7 @@ This code is supported by the website: https://www.guanjihuan.com
 The newest version of this code is on the web page: https://www.guanjihuan.com/archives/47909
 """
 
-import langchain_openai
+from langchain_openai import ChatOpenAI
 from langchain_core.prompts import ChatPromptTemplate
 import dotenv
 import os
@@ -12,7 +12,7 @@ import os
 dotenv.load_dotenv()
 
 # 创建聊天模型
-llm = langchain_openai.ChatOpenAI(
+llm = ChatOpenAI(
     api_key=os.getenv("OPENAI_API_KEY"),  # 从环境变量获取 API 密钥
     base_url=os.getenv("DASHSCOPE_BASE_URL"),  # 指定 API 端点
     model="qwen-plus",  # 使用通义千问 Plus 模型