【入门夯实】Lua modf拆数：裁决之杖折后价的整数小数分离

local function split(price)
    local int = math.floor(price)
    local frac = price - int       -- 两步换算，负价时符号翻车
    return int, frac
end

local function split(price)
    local int, frac = math.modf(price)   -- 一次拆两半
    return math.floor(int), frac
end
local int, frac = split(15001 * 0.85)
sendmsg(actor, 1, "裁决之杖整收 " .. int .. " 金零头 "
    .. string.format("%.2f", frac))