NULL 的起源(派生语言)是什么?

发布于 2024-10-08 19:45:13 字数 278 浏览 4 评论 0 原文

有点偏离主题,但是 NULL 背后的起源是什么?

我向一位法语客户发送了一封电子邮件,其中包含“感谢您带来 NULL '商品'”。

显然在法语中,NULL (NUL) 翻译为:

nul, nulle /nyl/

I. 形容词

(熟悉的) [personne] 无望的,无用的;无用的;无用的;无用的;无用的。

[辛苦,练习曲]毫无价值;

[电影,罗马] 垃圾(口语);

哎呀,我侮辱了他们。也许是法国血统?

A bit off topic but what is the origin behind NULL?

I sent an email to a French speaking customer containing "thank you for bringing in your NULL 'item'".

Apparently in French, NULL (NUL) translates to:

nul, nulle /nyl/

I. adjective

(familiar) [personne] hopeless, useless;

[travail, étude] worthless;

[film, roman] trashy (colloquial);

Oops, I insulted them. Perhaps of French origin?

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许一世地老天荒 2024-10-15 19:45:13

词源

源自中古法语 nul,源自拉丁语 nullus

名词

null(复数nulls

  1. 不存在或为空的值或值集。
  2. 表达式数量为零;没有什么。
  3. (计算)ASCII 或 Unicode 字符 (␀),用零值表示,表示没有字符,有时用作字符串终止符。
  4. (计算)没有有效值的实体的属性。

由于没有输入出生日期
患者,年龄为空。

形容词

null(比较级more null,最高级most null

  1. 没有法律效力,“无效”
  2. 微不足道的
  3. 不存在或不存在
  4. (数学)的零值集
  5. (数学)或包含精确为零的值
  6. (遗传学,突变),导致基因功能完全丧失,无定形。

资料来源:维基词典

显然,托尼·霍尔(因快速排序而闻名)在计算中引入了空值的概念。他后来称他的“数十亿美元的错误< /a>”指的是数十年来涉及空指针的损坏错误。

Etymology

From Middle French nul, from Latin nullus.

Noun

null (plural nulls)

  1. A non-existent or empty value or set of values.
  2. Zero quantity of expressions; nothing.
  3. (computing) the ASCII or Unicode character (␀), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
  4. (computing) the attribute of an entity that has no valid value.

Since no date of birth was entered for
the patient, his age is null.

Adjective

null (comparative more null, superlative most null)

  1. Having no legal validity, "null and void"
  2. insignificant
  3. absent or non-existent
  4. (mathematics) of the null set
  5. (mathematics) of or comprising a value of precisely zero
  6. (genetics, of a mutation) causing a complete loss of gene function, amorphic.

Source: Wiktionary.

Apparently Tony Hoare (of quicksort fame) introduced the concept of null values in computing. He later called that his "billion-dollar mistake" referring to the damage bugs involving null pointers have caused over the decades.

温柔嚣张 2024-10-15 19:45:13

源自拉丁语 Nullus == "Nothing"

在法语中,主要是 Nul意味着等于零,不存在,并且通过熟悉的扩展,不重要或毫无价值。

From the Latin Nullus == "Nothing"

In french, Nul, mainly means equal to zero, none existent, and by familiar extension, of little importance, or worthless.

街角卖回忆 2024-10-15 19:45:13

“空”是一个英文单词。根据我的字典,它的意思是无效的、不存在的、或者没有特征或表达的。另外,根据我的字典(牛津现代英语词典),它源自拉丁语,这可能意味着它通过法语到达英语。

"Null" is an English word. According to my dictionary it means invalid, non-existant, or without character or expression. Also according to my dictionary (Oxford dictionary of Current English) it derives from Latin, which could mean it got to English by way of French.

盛夏已如深秋| 2024-10-15 19:45:13

我是法国人,“Nul”被广泛使用为无用或毫无价值。

如果您的客户习惯于阅读您的英文消息,那么应该没问题(特别是如果他在 IT 领域工作)。

I'm french, "Nul" is widely used as useless or worthless.

If your customer is used to reading your messages in english, it should be OK (especially if he works in IT domain).

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