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": 12,
"globalHotValue": 1,
"updateDt": "2026-01-08 01:56:41",
"hotValue": 0.4,
"weekTrailSuccessRate": null,
"weekTrailSuccessSum": null,
"todayChainPv": 0,
"weekTrailSum": null,
"todayGlobalPv": 1,
"americaHotValueDouble": 1,
"globalHotValueDouble": 1,
"todayAmericaPv": 1,
"todayTrailSum": null,
"americaHotValue": 1,
"selectedValueDouble": 692,
"weekTrailSuccessNumMap": null,
"chinaHotValueDouble": 0,
"selectedValue": 692,
"hotValueDouble": 0.4,
"chinaHotValue": 0,
"weekTrailNumMap": null
}
