Listing 2 shows an array constructor with four elements with values given by the NULL constant, a variable, a literal and a scalar sub-query, respectively.
清单2显示具有4个元素的阵列构造函数，其值分别由NULL常数、变量、文字和标量子查询提供。
Otherwise, there can be confusion over whether an empty array is a null object, an array with no elements, or an array with a single object containing null or empty values.
否则，可能对一个空数组是null对象还是没有任何元素的数组，亦或带有一个对象且此对象包含null或空值的数组产生混淆。
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。
This ensures that the indexes up through I always have CARDS in them, and that the null values are always moved to the end of the array.
这确保了指标透过我总是对他们是有卡，而且总是空值移动到数组的末尾。
Points to a short-integer array that contains the initial bitmap bit values. If it is NULL, the new bitmap is left uninitialized.
指向一个含有位图初始化位值的短整形数组。如果为空，被创建的位图不进行初始化。
Points to a short-integer array that contains the initial bitmap bit values. If it is NULL, the new bitmap is left uninitialized.
指向一个含有位图初始化位值的短整形数组。如果为空，被创建的位图不进行初始化。
应用推荐