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"""
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10.3.4 在智能体中使用A2A工具
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（2）实战案例：智能客服系统
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"""
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from hello_agents import SimpleAgent, HelloAgentsLLM
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from hello_agents.tools import A2ATool
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from hello_agents.protocols import A2AServer
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import threading
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import time
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from dotenv import load_dotenv
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load_dotenv()
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llm = HelloAgentsLLM()
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# 1. 创建技术专家Agent服务
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tech_expert = A2AServer(
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name="tech_expert",
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description="技术专家，回答技术问题"
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)
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@tech_expert.skill("answer")
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def answer_tech_question(text: str) -> str:
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import re
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match = re.search(r'answer\s+(.+)', text, re.IGNORECASE)
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question = match.group(1).strip() if match else text
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# 实际应用中，这里会调用LLM或知识库
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return f"技术回答：关于'{question}'，我建议您查看我们的技术文档..."
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# 2. 创建销售顾问Agent服务
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sales_advisor = A2AServer(
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name="sales_advisor",
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description="销售顾问，回答销售问题"
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)
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@sales_advisor.skill("answer")
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def answer_sales_question(text: str) -> str:
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import re
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match = re.search(r'answer\s+(.+)', text, re.IGNORECASE)
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question = match.group(1).strip() if match else text
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return f"销售回答：关于'{question}'，我们有特别优惠..."
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# 3. 启动服务
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threading.Thread(target=lambda: tech_expert.run(port=6000), daemon=True).start()
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threading.Thread(target=lambda: sales_advisor.run(port=6001), daemon=True).start()
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time.sleep(2)
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# 4. 创建接待员Agent（使用HelloAgents的SimpleAgent）
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receptionist = SimpleAgent(
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name="接待员",
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llm=llm,
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system_prompt="""你是客服接待员，负责：
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1. 分析客户问题类型（技术问题 or 销售问题）
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2. 将问题转发给相应的专家
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3. 整理专家的回答并返回给客户
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请保持礼貌和专业。"""
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)
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# 添加技术专家工具
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tech_tool = A2ATool(
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agent_url="http://localhost:6000",
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name="tech_expert",
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description="技术专家，回答技术相关问题"
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)
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receptionist.add_tool(tech_tool)
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# 添加销售顾问工具
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sales_tool = A2ATool(
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agent_url="http://localhost:6001",
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name="sales_advisor",
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description="销售顾问，回答价格、购买相关问题"
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)
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receptionist.add_tool(sales_tool)
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# 5. 处理客户咨询
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def handle_customer_query(query):
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print(f"\n客户咨询：{query}")
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print("=" * 50)
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response = receptionist.run(query)
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print(f"\n客服回复：{response}")
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print("=" * 50)
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# 测试不同类型的问题
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if __name__ == "__main__":
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handle_customer_query("你们的API如何调用？")
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handle_customer_query("企业版的价格是多少？")
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handle_customer_query("如何集成到我的Python项目中？")
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