【进阶实战】操作审计：敏感操作的日志链封装

local auditChain = { lastHash = 0 }
local function hashOf(text)
    local sum = 0
    for i = 1, #text do
        sum = (sum * 31 + string.byte(text, i)) % 4294967296
    end
    return sum
end
local function audit(op, actorName, detail)
    local row = op .. "|" .. actorName .. "|" .. detail .. "|" .. os.time()
    local h = hashOf(row .. auditChain.lastHash)
    auditChain[#auditChain + 1] = { row = row, hash = h }
    auditChain.lastHash = h
    print("审计入链：" .. row)
end
local function verifyChain()
    local prev = 0
    for i, e in ipairs(auditChain) do
        local h = hashOf(e.row .. prev)
        if h ~= e.hash then
            return false, "第 " .. i .. " 条记录被篡改"
        end
        prev = e.hash
    end
    return true
end

audit("发奖", "GM老王", "裁决之杖 x1 -> 玩家甲")
audit("封号", "GM老王", "玩家乙 7 天")