这款API产品提供按揭提前还款计算功能，帮助用户评估提前还款对贷款金额、期限和利息的影响，支持周期性和一次性还款方案对比，并计算提前还款罚金。
{
"purchaseCount": 0,
"pv": 2,
"globalHotValue": 0,
"updateDt": 1758387510207,
"hotValue": 0,
"todayChainPv": 0,
"todayGlobalPv": 0,
"americaHotValueDouble": 0,
"globalHotValueDouble": 0,
"todayAmericaPv": 0,
"americaHotValue": 0,
"selectedValueDouble": 800,
"chinaHotValueDouble": 0,
"selectedValue": 800,
"chinaHotValue": 0,
"hotValueDouble": 0
}
