JASON10668: 同步英文条目更新

2026-03-12T09:30:47Z

同步英文条目更新

JASON10668: Create SChinese version.

2026-03-10T11:43:55Z

Create SChinese version.

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{{needhelp/zh-CN}}
{{languages}}
{{tool/zh-CN
|name=次元袋
|tile=[[image:bag.png]]
|appearance=袋子
|cost=100
|weight=15
|color=brown
|material=布
}}
'''次元袋'''（bag of holding）是{{cnlink|NetHack}}中的一种[[容器]]类[[工具]]。它由[[布]]制成，未[[鉴定]]时外观为[[袋子]]。

== 生成 ==
[[仓库番]]顶层谜题的奖励房间中，有{{frac|2}}的概率生成一只次元袋。

{{upcoming/zh-CN|NetHack 3.7.0|[[仓库番4a关卡]]中生成次元袋的概率调整为{{frac|3|4}}，[[仓库番4b关卡]]中生成次元袋的概率调整为{{frac|4}}。}}

== 描述 ==
次元袋拥有一项独特的性质：它会改变存入的物品的总[[重量]]，具体效果根据次元袋的{{cnlink|BUC}}而定，见下表（下表公式中<math>cwgt</math>是次元袋内容物的原重量）{{refsrc|src/pickup.c|1235|nethack=3.6.7}}：

{|class="wikitable"
! BUC !! 总重量
|-
| 祝福
| <math>15 + (\frac{cwgt}{4} + 1)</math>
|-
| 未诅咒
| <math>15 + (\frac{cwgt}{2} + 1)</math>
|-
| 诅咒
| <math>15 + (cwgt \times 2)</math>
|}

和大多数容器一样，次元袋会保护装入的物品不受[[火（元素）|火焰]]、[[寒冷]]、[[电击]]和[[取消]]的影响，除此以外，它还能保护装入的[[易碎]]物品不被摔碎。

每次玩家[[搜刮]]、[[使用]]或[[倾倒]]被诅咒的次元袋时，其内容物中的每个物件都有{{frac|13}}的概率消失。

=== 次元袋的爆炸 ===
将特定物品装入次元袋会导致其爆炸，摧毁其自身及其所有的内容物，并对玩家造成伤害，以下物品会引发次元袋爆炸{{refsrc|src/pickup.c|2081|nethack=3.6.7}}：

* 有[[充能]]的[[魔术袋]]{{refsrc|src/pickup.c|2087|nethack=3.6.7|name="charges"}}
* 有充能的[[取消魔杖]]<ref name="charges"/>
* 其他次元袋{{refsrc|src/pickup.c|2091|nethack=3.6.7|name="nesting"}}
* 装有上述物品的袋子（但如果将多层袋子[[#次元袋的嵌套|嵌套]]在外层，会降低爆炸的概率<ref name="nesting"/>）

{{upcoming/zh-CN|3.7.0|根据{{commit|71754910db3be6effface4de88c35a056fe70c2c}}、{{commit|9cdcf7b2194960c6ea8b98f2e2a6e71ee4a7959a}}、{{commit|6fd51c29ef120744098348798c17b7ee0595065f}}和{{commit|ce1f4788cdbccaba1533bec1e478c0cc9bd550cf}}，现在次元袋爆炸时不会摧毁其全部内容物，而是仅摧毁其{{frac|13}}的内容物，使其余物品随机向四周飞散，[[易碎]]的物品在此过程中也会被摧毁，被飞散的物品砸到的怪物会被激怒。}}

== 策略 ==
次元袋能够大大增加玩家能够携带的物资量，因此是[[飞升套件]]的重要组成部分。次元袋能够为其内容物抵御各种损伤，但无法抵御[[潮湿]]效果——你可以为次元袋[[上油]]，或是将它装入[[防水袋]]来补足这一缺陷。

=== 物品管理 ===
由于次元袋有爆炸的风险，部分玩家会选择再携带一只[[布袋]]来存放一些比较珍贵，或者会引爆次元袋的物品。

你可以将次元袋也存入一个布袋，来防止次元袋被[[诅咒物品]]的魔法效果影响，不过，这会使得你从次元袋取出物品花费的时间增加。

=== 处理被诅咒的次元袋 ===
如果你在[[骨档]]里发现次元袋，它很有可能是被诅咒的，这会导致它重量过高，难以捡起，且直接搜刮它会导致里面的部分物资消失，若想要完好回收里面所有的物品，你需要先解除它的诅咒。你可以先尝试把次元袋捡起，如果能够捡起来，就可以利用[[圣水]]或[[解除诅咒]]的手段解除袋子的诅咒，如果无法捡起，你可以直接对袋子挥动[[取消魔杖]]，这会将袋子变为未诅咒状态，不会有其他影响。

如果没有取消手段，也无法捡起袋子，你可以直接对袋子使用倒出操作——这仍然会导致部分内容物消失，但可以最大限度地抢救剩余的东西，而不用担心自己的物品栏装不下。

还有一种抢救手段是让[[黏胶立方怪]]吃下次元袋：这样会损失袋子，但里面的所有物品都能安全地保留，只需杀死怪物就可以回收。

=== 避免次元袋爆炸 ===
只要不发生误操作，将其他次元袋或者魔术袋放进次元袋的行为是容易避免的，要避免取消魔杖进入次元袋相对就没那么容易。出于保险考虑，不要将任何没有鉴定的魔杖放进次元袋，获得新魔杖后要第一时间进行[[刻写]]鉴定，如果某魔杖在刻写时会使得地面上已有的文字消失，则它就有可能是取消魔杖，要特别留意。

通常来说，不建议携带不需要使用的魔术袋或多余的次元袋，这样可以避免往次元袋存放物品时出现误操作炸掉次元袋的概率。

=== 次元袋的嵌套 ===
若先在会导致次元袋爆炸的物品外面套上多层布袋或防水袋，再放入次元袋，则能够降低发生爆炸的概率。

一般来说，该机制最实用的用途就是将一个次元袋装入另一个次元袋，这样可以进一步降低储存物的重量，在你需要携带大量不需要取出的贵重物品通关以提高[[得分]]时非常有用。

爆炸的概率与袋子嵌套的层数有关，见下表<ref name="nesting"/>：
{| class="wikitable"
! 布袋数量
! 发生爆炸的概率
! 成功概率
|-
| 0
| 1/1
| 0
|-
| 1
| 2/2
| 0
|-
| 2
| 3/4
| 0.25
|-
| 3
| 4/8
| 0.5
|-
| 4
| 5/16
| 0.6875
|-
| 5
| 6/32
| 0.8125
|-
| 6
| 7/64
| 0.890625
|-
| 7
| 8/128
| 0.9375
|-
| 8
| 9/128
| 0.9296875
|-
| n (n>6)
| (n+1)/128
|
|}

根据表内公式可知，当次元袋外层的布袋数量达到7层后，爆炸的概率达到极小值（6.25%），继续增加嵌套层数反而会提高爆炸概率。

若要将更多次元袋进行嵌套，下表展示了嵌套层数和成功概率的关系：
{| class="wikitable"
! 次元袋个数
! 间隔的布袋数量
! 成功概率
|-
| 2
| 7
| 0.9375
|-
| 3
| 7,7
| 0.769042...
|-
| 4
| 7,7,7
| 0.512570...
|-
| 5
| 7,7,7,7
| 0.256222...
|-
| 6
| 7,6,6,6,7
| 0.0935839...
|-
| 7
| 7,6,5,5,6,7
| 0.0236287...
|-
| ...
|-
| 43
| 3,2,2, ... ,2
| 非常小
|}

举例说明，如果你需要嵌套3个次元袋，在每两个次元袋之间都套7层布袋（在上表里记作“7,7”），则第一次嵌套不爆炸的概率是1-(8/128)，将两个嵌套的次元袋装进第三个次元袋时，每个次元袋均需进行一次概率判定，此时不爆炸的概率是(1-(8/128)) * (1-(16/128)){{refsrc|src/pickup.c|2229|nethack=3.6.7}}，计算可知在整个嵌套过程中，有约23.1%的概率发生爆炸。

== 历史 ==
次元袋最初于[[NetHack 3.0.0]]加入游戏。

从[[NetHack 3.3.0]]到[[NetHack 3.4.3]]版本中，仓库番4a关卡的通关奖励必定是次元袋，4b关卡的奖励必定是[[反射护身符]]。

== 起源 ==
次元袋起源自《[[龙与地下城]]》中的同名道具。不少民间传说、神话和流行奇幻作品中都有类似设定的魔法口袋。

== 消息 ==
{{message/zh-CN|一件<物品>消失了！|你使用或搜刮了被诅咒的次元袋，导致里面的物品消失{{refsrc|src/pickup.c|2374|nethack=3.6.7}}。|An <object> has vanished!}}
{{message/zh-CN|你看到<物品>消失了！|同上，但消失的物品尚未被鉴定{{refsrc|src/pickup.c|2376|nethack=3.6.7}}。|You see <object> disappear!}}
{{message/zh-CN|当你放入<物品>时，你被魔法爆炸冲击！|你将特定的物品放入次元袋，导致其爆炸{{refsrc|src/pickup.c|2231|nethack=3.6.7}}。|As you put <object> inside, you are blasted by a magical explosion!}}

==Variants==
{{translation/zh-CN|n}}
===SLASH'EM===
In [[SLASH'EM]], [[upgrading]] a sack or oilskin sack can produce a bag of holding. The [[Wallet of Perseus]] is an [[unaligned]] [[artifact]] bag of holding that has enhanced weight reduction.

Due to the ability to upgrade, the amulet of reflection is generally the more valuable Sokoban prize: there is still a {{frac|2}} chance of each reward, even with [[Sokoban (SLASH'EM)|the new levels]] introduced in the variant.

SLASH'EM has a 'showweight' [[option]] that explicitly displays the amount of weight the hero is carrying - informally identifying bags of holding is trivial with this option turned on. The Wallet of Perseus also enables informal identification of a bag of holding via the '[[naming artifacts]]' trick.

===NetHack brass===
In [[NetHack brass]], Sokoban offers a choice between 3 items, with one being a bag of holding.

===GruntHack===
In [[GruntHack]], causing a bag of holding to explode does not destroy the contents of the bag, but scatters them and the hero throughout the dungeon via [[level teleport]].

[[Sokoban (GruntHack)|Sokoban]] in GruntHack also offers a choice between 3 prizes, with one being a guaranteed bag of holding.

===SporkHack===
In [[SporkHack]], an exploding bag of holding scatters its contents nearby, rather than destroying them outright - this will still destroy the inserted object, and fragile objects such as [[potion]]s and [[mirror]]s are broken as if they were thrown.

===UnNetHack===
In [[UnNetHack]], exploding bags of holding react the same as in SporkHack, scattering most of its contents and destroying fragile items.

[[Sokoban (UnNetHack)|Sokoban]] in UnNetHack offers a choice between 3 prizes, with one being a guaranteed bag of holding.

===AceHack===
In [[AceHack]], inserting a bag of tricks or a wand of cancellation inside a bag of holding will drain them of their charges rather than destroying any items inside. A hero can still destroy bags of holding by nesting them, but will receive a confirmation prompt when doing so. This also applies to [[NetHack 4]], a 'successor' variant to AceHack.

===NetHack Fourk===
In [[NetHack Fourk]], [[Sokoban (NetHack Fourk)|Sokoban]] now has set rewards for each of the possible maps that can appear as its final floor. [[Open at the Top]], which is essentially a clone of Sokoban level 4a, always has a bag of holding as its prize.

===xNetHack===
In [[xNetHack]], an exploding bag of holding behaves as in SporkHack and some other variants: {{frac|13}} of the contents are destroyed along with the bag and inserted item, and the rest are scattered, destroying fragile items.

===EvilHack===
In [[EvilHack]], an exploding bag of holding functions as in SporkHack and some other variants: {{frac|13}} of the contents are destroyed along with the bag and inserted item, and the rest are scattered, destroying fragile items.

[[Sokoban (EvilHack)|Sokoban]] in EvilHack offers 3 different type of prize item, and its prize tool has a {{frac|2}} chance of being a bag of holding.

The [[Bag of the Hesperides]] is an artifact bag of holding similar to the Wallet of Perseus that repels water like an oilskin sack, confers [[protection]] when carried, and is made of inherently fireproof [[dragonhide]] - it can only be obtained at the end of the [[Ice Queen's Realm]].

===Hack'EM===
In [[Hack'EM]], bags of holding behave as in EvilHack. The Wallet of Perseus also possesses most of the same traits as the Bag of the Hesperides from EvilHack, minus the location.

== 百科文本 ==
{{encyclopedia|
"Now, this third handkerchief," Mein Herr proceeded, "has also four edges, which you can trace continuously round and round: all you need do is to join its four edges to the four edges of the opening. The Purse is then complete, and its outer surface--"
"I see!" Lady Muriel eagerly interrupted. "Its outer surface will be continuous with its inner surface! But it will take time. I'll sew it up after tea." She laid aside the bag, and resumed her cup of tea. "But why do you call it Fortunatus's Purse, Mein Herr?"
The dear old man beamed upon her, with a jolly smile, looking more exactly like the Professor than ever. "Don't you see, my child--I should say Miladi? Whatever is inside that Purse, is outside it; and whatever is outside it, is inside it. So you have all the wealth of the world in that leetle Purse!"
|[ Sylvie and Bruno Concluded, by Lewis Carroll ]
}}

== 引用及注释 ==
<references/>
{{nethack-367/zh-CN}}
[[Category:Tools/zh-CN]]
[[Category:Containers/zh-CN]]

Bag of holding/zh-CN - Revision history

JASON10668: 同步英文条目更新

JASON10668: Create SChinese version.