| 释义 |
null/nʌl/ adj. & n.●adj. 1 (esp. 尤用于 null and void) invalid; not binding 无效的；无束缚力的 2 non-existent; amounting to nothing 不存在的；等于零的 3 having or associated with the value zero 无价值的；无用的 4 Computing 【计算】a empty; having no elements 空的；无内容的 null list 空表 b all the elements of which are zeros 零的 null matrix 零矩阵 5 without character or expression 无特征的；无表情的 ●n. a dummy letter in a cipher (密码中)哑字母 [French nul nulle or Latin nullus ‘none’, from ne ‘not’ + ullus ‘any’] |