{
  "message": "农产品价格监控系统 API",
  "version": "2.0.0",
  "endpoints": {
    "GET /api/pork/week": "获取最近一周猪肉价格",
    "GET /api/corn/week": "获取最近一周玉米价格",
    "GET /api/prices": "获取所有价格数据",
    "GET /api/prices/pork": "获取猪肉价格",
    "GET /api/prices/corn": "获取玉米价格",
    "GET /api/prices/latest": "获取最新价格",
    "GET /api/prices/statistics": "获取价格统计",
    "GET /api/corn/today-week": "获取玉米当天价格 + 最近7天价格",
    "GET /api/pork/today-week": "获取猪肉当天价格 + 最近7天价格"
  }
}