Lua复利计算：本金滚存的逐年翻账

local function formula(fen, ratePct, years)
    local r = fen
    for i = 1, years do
        r = r * (100 + ratePct) / 100
    end
    return r
end

local function rolling(fen, ratePct, years)
    for i = 1, years do
        fen = math.floor(fen * (100 + ratePct) / 100)
    end
    return fen
end
local p = getplayerbyname("bank01")
sendmsg(p, 1, "10 年后 "
    .. rolling(1000000, 5, 10) .. " 分")