{
  "code": 400,
  "msg": "请提供内容链接",
  "usage": {
    "example": "/?url=内容链接",
    "optional": "/?url=内容链接&api=序号(1开始) 或 &api=自定义解析接口URL",
    "available_apis": "1. https://1/?link=\n2. https://2/?url="
  }
}