数字人和智能体的技术栈差在哪？各跑一个 demo 就清楚了

[
  {
    "type": "function",
    "function": {
      "name": "query_order",
      "description": "按订单号查询订单状态",
      "parameters": {
        "type": "object",
        "properties": { "order_id": { "type": "string" } },
        "required": ["order_id"]
      }
    }
  }
]

STATES = ["PARSE", "CALL_TOOL", "SUMMARIZE"]


def run(query: str) -> str:
    state = "PARSE"
    result = {}
    while True:
        if state == "PARSE":
            # 由模型判断需要调用哪个工具，此处简化为固定走向
            state = "CALL_TOOL"
        elif state == "CALL_TOOL":
            result = {"order_id": "A001", "status": "已发货"}  # 演示数据，接真实接口替换
            state = "SUMMARIZE"
        elif state == "SUMMARIZE":
            return f"订单 {result['order_id']} 当前状态：{result['status']}"


print(run("帮我查下订单 A001"))

pipeline:
  - step: script
    action: llm_generate     # 生成口播文案
  - step: tts
    action: text_to_speech   # 文案转语音，本地实验可用开源 TTS
  - step: drive
    action: avatar_render    # 形象驱动，接你的数字人渲染服务
  - step: output
    action: save_mp4