【入门夯实】插入错位：table.insert两参与三参的歧义

local function enrollBad(list, playerId)
    table.insert(list, playerId)
end
enrollBad(list, 5)

local function enroll(list, playerId)
    list[#list + 1] = tostring(playerId)
end
local function insertAt(list, pos, playerId)
    table.insert(list, pos, tostring(playerId))
end
local function showList(actor, list)
    actor = getplayerbyname(actor)
    sendmsg(actor, 1, "攻城名单 " .. #list .. " 人：" .. table.concat(list, "、"))
end

local function dropLast(list)
    return table.remove(list)
end
local function dropAt(list, pos)
    return table.remove(list, pos)
end