113 lines
3.5 KiB
Python
113 lines
3.5 KiB
Python
"""
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This code is supported by the website: https://www.guanjihuan.com
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The newest version of this code is on the web page: https://www.guanjihuan.com/archives/48813
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"""
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import json
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import os
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from datetime import datetime
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from openai import OpenAI
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# --- 1. 配置 ---
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import dotenv
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dotenv.load_dotenv(".env")
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client = OpenAI(
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api_key=os.getenv("OPENAI_API_KEY"),
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base_url=os.getenv("DASHSCOPE_BASE_URL"),
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)
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MODEL = "xxx"
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# --- 2. 工具定义 ---
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def get_current_time():
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return datetime.now().strftime("%Y-%m-%d %H:%M:%S")
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def calculate(expression: str):
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try:
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return str(eval(expression))
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except Exception as e:
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return f"Error: {e}"
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TOOLS = {
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"get_current_time": get_current_time,
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"calculate": calculate
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}
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# --- 3. 动态构建 Prompt ---
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def build_system_prompt():
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# 自动从 TOOLS 字典生成描述
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tool_desc = "\n".join([f"- {name}: {func.__doc__ or '无描述'}" for name, func in TOOLS.items()])
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system_prompt = f"""你是一个智能助手。可用工具：
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{tool_desc}
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请直接返回纯 JSON 格式，不要使用 Markdown 代码块。
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注意：input 字段必须是一个 JSON 对象，而不是字符串。
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格式：
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{{
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"thought": "思考过程 或 最终回复给用户的话"
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"action": "工具名 或 final",
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"input": "参数字典 或 null",
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}}"""
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return system_prompt
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# --- 4. 核心逻辑 ---
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def run_agent(user_input):
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messages = [
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{"role": "system", "content": build_system_prompt()},
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{"role": "user", "content": user_input}
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]
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print(f"\n🚀 任务: {user_input}\n" + "-"*50)
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for step in range(5):
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print(f"\n[步骤 {step+1}] 调用大模型...\n")
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try:
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print(f'📄 模型原始输入（Raw Prompt）：\n{json.dumps(messages, indent=4, ensure_ascii=False)}')
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except:
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print(f'📄 模型原始输入（Raw Prompt）：\n{messages}')
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# 调用模型
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response = client.chat.completions.create(model=MODEL, messages=messages, temperature=0)
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raw_response = response.choices[0].message.content.strip()
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# --- 打印原始回复 ---
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print(f"\n📄 模型原始回复 (Raw Response):\n{raw_response}")
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# 解析与执行
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try:
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data = json.loads(raw_response)
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action = data.get("action")
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thought = data.get("thought")
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input_params = data.get("input")
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print('\n解析得到：')
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print(f"（1）思考: {thought}")
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print(f"（2）动作: {action}")
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print(f"（3）参数: {input_params}")
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if action == "final":
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print()
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print("-" * 50)
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print(f"\n✅ 最终结果: {thought}\n")
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print("-" * 50)
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print()
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return
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# 执行工具
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if action in TOOLS:
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# 自动解包参数，如果没有参数则直接调用
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result = TOOLS[action](**input_params) if input_params else TOOLS[action]()
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print(f"\n工具输出: {result}")
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# 记录历史
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messages.append({"role": "assistant", "content": raw_response})
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messages.append({"role": "user", "content": f"工具执行结果: {result}"})
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else:
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print("❌ 未知工具")
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except Exception as e:
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print(f"❌ 执行错误: {e}")
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return
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if __name__ == "__main__":
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run_agent("现在几点了？帮我算算 5*20 等于多少？") |