null set
美
英 
- un.零集;空集
- 網(wǎng)絡(luò)零集合;空集合;零測(cè)集
英漢解釋
例句
If this information does not exist, then N =, the null set.
如果這個(gè)信息不存在,則N=空集。
For clearing a pool, the one taking a set (with null Set) should be used.
如果要清空一個(gè)池,就要使用那個(gè)接收集合的API(傳入一個(gè)null集合)。
If doesn't exist or is NULL, set to and return .
如果不存在或者是NULL,就把設(shè)置為并返回。
If the form input field is not null, set the payload you receive as the widget value, as shown in Listing 14
如果表單輸入字段不為空,將小部件的值設(shè)為接收到的負(fù)載,如清單14所示。
set empty set, null set Venn diagram union intersection universal set proper subset solution set
集合空集維恩圖并集交集全集真子集解集有關(guān)代數(shù),方程,不等式