GrandpaKartul's questions

我一直遇到这个问题，因为在整个脚本中我 getAsync 和 SetAsync 值的顺序完全相同，但在排除故障时，由于我不断丢失数据，它显然说它尝试为玩家设置的第一个值是 nil，虽然打印表格显示它在那里，只是与我设置的位置不同。

local DataStore = game:GetService("DataStoreService"):GetDataStore("Basic")

local template = {
    Money = 0;
    Level = 0;
    XP = 0
}

local MAXIMUM_RETRY_ATTEMPTS = 5
local RETRY_COOLDOWN = 1

game.Players.PlayerAdded:Connect(function(plr)
    local ls = plr:FindFirstChild("leaderstats")
    local retryCount = 0
    local success = false
    local result
    while not success and retryCount < MAXIMUM_RETRY_ATTEMPTS do
        success, result = pcall(function()

            local data = DataStore:GetAsync(tostring(plr.UserId))
            if data == nil then
                print("nothing?")
            else
                ls.Money.Value = data.Money
                ls.Level.Value = data.Level
                ls.XP.Value = data.XP
                print("Success import")
                print(data)
            end
        end)
        if not success then
            retryCount = retryCount + 1
            warn(string.format("Failed to Import %s's data with error : %s", plr.Name, tostring(result or "")))
            local data = DataStore:GetAsync(tostring(plr.UserId))
            print(data)
            task.wait(RETRY_COOLDOWN)
        end
    end
end)

game.Players.PlayerRemoving:Connect(function(plr)
    local result
    local success = false
    local ls = plr:FindFirstChild("leaderstats")
    while not success do
        success, result = pcall(function()
            DataStore:SetAsync(tostring(plr.UserId), {
                Money = ls.Money.Value;
                Level = ls.Level.Value;
                XP = ls.XP.Value
            })
            print("Success export")
        end)
        if not success then
            warn(string.format("Failed to Export %s's data with error : %s", plr.Name, tostring(result or "")))
        end
    end
end)

我正在尝试编写一个炮塔代码，当敌人进入炮塔射程时向敌人射击，但代码有时会中断并给出错误信息。Script:31: attempt to index nil with 'Humanoid' 这种情况很少发生，只有当僵尸死亡时才会发生。不仅如此，似乎有些子弹造成的伤害比实际伤害要大得多。

head = script.Parent.PrimaryPart

local function triggershoot(part)
    local beam = Instance.new("Part",script.Parent)

    beam.Anchored = true
    beam.CanCollide = false
    beam.Shape = "Block"
    beam.CFrame = head.CFrame
    beam.Size = Vector3.new(0.5,0.5,0.5)
    beam.Material = "Plastic"
    beam.BrickColor = BrickColor.new("Dark taupe")

    beam.CFrame = CFrame.lookAt(head.Position,part.Position)
    for i = 0, 50, 1 do
        wait()
        beam.CFrame = beam.CFrame + beam.CFrame.LookVector      
        beam.Touched:Connect(function(plr)
            if plr.Parent:HasTag("enemy") then
                plr.Parent.Humanoid:TakeDamage(3)
                beam:Destroy()
            end
        end)
    end
end

while true do
    wait()
    local parts = workspace:GetPartsInPart(script.Parent.zone)
    for _, part in pairs(parts) do
        if part:HasTag("enemy") and part.Parent.Humanoid.Health > 0 then

            local update = CFrame.lookAt(head.Position,part.Position)
            head.CFrame = update
            coroutine.wrap(triggershoot)(part)
            wait(1)
        end
    end
end