【高级技巧】Lua单遍统计：祖玛教主战报的多指标一次扫完

local n = #list                    -- 扫一遍计数
local sum = 0
for _, v in ipairs(list) do sum = sum + v end   -- 又扫一遍求和

local function stat(list)
    local st = {n = 0, sum = 0, max = -math.huge, min = math.huge}
    for _, v in ipairs(list) do
        st.n = st.n + 1
        st.sum = st.sum + v
        if v > st.max then st.max = v end
        if v < st.min then st.min = v end
    end
    return st
end
local s = stat(DMGS)
sendmsg(actor, 1, "祖玛教主战报 " .. s.n .. " 刀，区间 "
    .. s.min .. " 到 " .. s.max)