null
英 [nʌl]
美 [nʌl]
- adj.无效的，无价值的；等于零的
- n.零，[数]空
英文词源
- null (adj.)
- "void of legal force," 1560s, from Middle French nul, from Latin nullus "not any, none," from ne- "not, no" (see un-) + illus "any," diminutive of unus "one" (see one).
双语例句
- 1. A spokeswoman said the agreement had been declared null and void.
- 女发言人称该协议已宣布无效。
- 来自柯林斯例句
- 2. Failure. The NULL value has been passed as a parameter.
- 失败. 将空指针NULL传给了一个参数.
- 来自互联网
- 3. If mem block is NULL, pointer is ignored and free immediately returns.
- 如果NULL内存块,操作将被忽略并且函数立即返回.
- 来自互联网
- 4. This function returns the removed node on success, or NULL on failure.
- 这个函数如果执行成功,将返回被删除的子节点;如果执行失败, 将返回null[空值].
- 来自互联网
- 5. A pointer to a NULL - terminated string representing a device instance identifier.
- 指向一个以NULL结尾的字符串,象征设备实例描述符.
- 来自互联网
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