免费在线包年计算器，使用公式PY=Packs×Years精确计算吸烟包年值，评估肺癌风险。支持自定义包大小，提供终身吸烟包数统计，适用于健康筛查和医疗评估参考。
{
"purchaseCount": 0,
"pv": 6,
"globalHotValue": 0,
"updateDt": "2025-11-05 02:12:50",
"hotValue": 0,
"weekTrailSuccessRate": null,
"weekTrailSuccessSum": null,
"todayChainPv": 0,
"weekTrailSum": null,
"todayGlobalPv": 0,
"americaHotValueDouble": 0,
"globalHotValueDouble": 0,
"todayAmericaPv": 0,
"todayTrailSum": null,
"americaHotValue": 0,
"selectedValueDouble": 691,
"weekTrailSuccessNumMap": null,
"chinaHotValueDouble": 0,
"selectedValue": 691,
"hotValueDouble": 0,
"chinaHotValue": 0,
"weekTrailNumMap": null
}
