{
  "kind": "合成对照输入与本地模型/解析结果，非设备实测",
  "article": "https://qifudev.com/article/mqtt-hash-zero-level-plus-empty/",
  "tool": "https://qifudev.com/tools/mqtt-topic-match/",
  "model": "+匹配一个层级，#匹配最后的零个或多个层级；$主题遵守首层通配限制",
  "inputs": {
    "filter": "a/#",
    "topic": "a"
  },
  "outputs": {
    "matched": "匹配",
    "topicBytes": 1,
    "filterBytes": 3
  },
  "extra_checks": [],
  "warnings": [
    "本工具按MQTT 3.1.1主题匹配，不解析MQTT 5共享订阅前缀，也不连接Broker。"
  ],
  "limitation": "不连接Broker、不验证ACL或订阅是否成功，不解析MQTT5共享订阅前缀；UTF-8长度与字数分开。",
  "source": {
    "label": "OASIS MQTT 3.1.1正式规范",
    "url": "https://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html"
  },
  "measured": {
    "device": null,
    "firmware": null,
    "instrument": null,
    "conditions": null,
    "raw_result": null,
    "verdict": null
  }
}