王者堕落天使
NULL adj.(technical术语) having the value zero零值的，等于零的e.g. a null result/output 毫无结果；零输出e.g. The contract was declared as null and void. 合同被宣布无效（这里的null and void是一个惯用语，通常用以表示选举、协议等无法律效力的） e.g. null hypothesis（统计学）零假设--------------------------------------------------------------------------------------------------------------------The figure 0 has several different names in English, although in American English zero is commonly used in all cases.数字0在英国英语中有几个不同的名称，可在美国英语中通常用zero表示：ZEROused in precise scientific, medical and economic contexts and to talk about temperature用于精确的科学、医学和经济方面，亦用以表示温度：e.g.It was ten degrees below zero last night.e.g.zero inflation/growth/profitNOUGHTused in British English to talk about a number, age, etc.在英国英语中用以表示数字、年龄等：e.g.A million is written with six noughts.e.g.The car goes from nought to sixty in ten seconds.e.g.clothes for children aged from nought to sixNIL1.used to talk about the score in a team game, for example in football用以表示团队比赛（如足球赛）的比分等：e.g.The final score was one nil.(1-0) 2.used to mean 'nothing at all'用以表示完全没有：e.g.The doctor rated her chances as nil.
纯度装饰
①词性不同
null是形容词，表示零值的，等于零的。
zero可以是名词，表示数字0，零点等。也可以是动词，表示将(仪器、控制装置等)调到零。
naught可以是形容词，表示无价值的。也可以是副词，表示决无。还可以是名词，表示无，无价值，零，坏人。
nil是名词，表示(数码)零，(体育比赛中的)0分，无，零。
②使用领域不同
null通常用以表示选举、协议等无法律效力的。
zero用于精确的科学、医学和经济方面，亦用以表示温度。
naught在英国英语中用以表示数字、年龄等。
nil用以表示团队比赛（如足球赛）的比分等。
例句：
The contract was declared as null and void.
合同被宣布无效。
It was ten degrees below zero last night.
昨晚零下十度。
A million is written with six noughts.
一百万写六个零。
The final score was one nil.
最后的比分是1比0。
扩展资料
naught常用短语
①for naught 徒然地,无缘无故地;免费地
例句：
We'd come all this way for naught.
我们此行一无所获。
②naught line 零位线
例句：
Gives the depth priority line scan algorithm which reduces the naught route in the process of line scan image output which improves the output efficieney.
给出了一种深度优先式行扫描算法，以减少扫描或图像输出过程中的空行程，提高输出效率。
③come to naught 成为泡影,失败,落空
例句：
His effort to help her will come to naught.
他帮助她的努力将成为泡影。
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