null
/nʌl/ 名词 C1中文： 空值
- A non-existent or empty value or set of values.
- Zero quantity of expressions; nothing.
- Something that has no force or meaning.
- The null character; the ASCII or Unicode character (␀), represented by a zero value, which indicates no character and is sometimes used as a string terminator.
- The attribute of an entity that has no valid value. · Since no date of birth was entered for the patient, his age is null.
- One of the beads in nulled work.
- The null hypothesis.
复数 nulls
来自图书馆
Let me hasten to add,” continued he, “that the testator, having only the right to alienate a part of his fortune, and having alienated it all, the will will not bear scrutiny, and is declared null and void.”
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