For that effect, JSON defines the following main data structures: number, string, boolean ( true and false), array ( an ordered sequence of values), object ( collection of key value pairs), and null. 为了实现该目的,JSON定义了以下主要数据结构:数字、字符串、布尔值(真或假)、数组(值的有序排列)、对象(键值对集合)和null。
A dynamical system is null if its sequence entropy is zero for any sequence. 系统称为null的,如果对任意序列,它的序列熵为零。
In general random environment, we provid some sufficient conditions for recurrence and null recurrence by boundedness of sequence of numbers. So we extend the frame which Solomon has studied. 在一般随机环境下,通过数列的有界性给出了常返与零常返的充分条件并讨论了在独立随机环境下非常返性中的大数定律,从而推广了Solomon的研究框架。
Null sequence in the mapping system 映射系统中的零序列
Null null additivity, and the convergence for sequence of measurable function on semi continuous fuzzy measure space are discussed. 零零可加性与半连续模糊测度空间上可测函数序列的收敛性之间的关系。