获取天气V1

[
    {
        "name": "key",
        "type": "string",
        "required": false,
        "description": "平台 API 访问密钥（选填）",
        "example": "sk_xxxxxxxxxxxxxxxx"
    },
    {
        "name": "cityId",
        "type": "string",
        "required": true,
        "description": "城市ID编码，如101030100(天津)，需从city.json获取对应城市code",
        "example": ""
    },
    {
        "name": "format",
        "type": "string",
        "required": false,
        "description": "返回格式，默认json，可选xml",
        "example": ""
    }
]

{
"code": 200,
"message": "success",
"time": "2026-03-08 14:30:25",
"data": {
  "update_time": "2026-03-08 14:30:00",
  "city_info": {
    "city": "天津市",
    "city_id": "101030100",
    "parent": "天津",
    "weather_update_time": "14:25"
  },
  "current": {
    "date": "20260308",
    "temperature": "24",
    "humidity": "22%",
    "pm25": 15,
    "pm10": 46,
    "quality": "优",
    "cold_index": "各类人群可自由活动"
  },
  "yesterday": {
    "date": "07",
    "ymd": "2026-03-07",
    "week": "星期六",
    "sunrise": "06:30",
    "high": "高温 25.0℃",
    "low": "低温 15.0℃",
    "sunset": "18:15",
    "aqi": 108,
    "fx": "西北风",
    "fl": "4-5级",
    "type": "晴",
    "notice": "愿你拥有比阳光明媚的心情"
  },
  "forecast": [
    {
      "date": "08",
      "ymd": "2026-03-08",
      "week": "星期日",
      "sunrise": "06:28",
      "high": "高温 26.0℃",
      "low": "低温 16.0℃",
      "sunset": "18:16",
      "aqi": 55,
      "fx": "东南风",
      "fl": "3-4级",
      "type": "多云",
      "notice": "愿你拥有比阳光明媚的心情"
    }
  ]
}
}