BSON data type constant for a null value
BSON数据类型空值不变
译者:生物统计家园网 机器人LoveR
描述----------Description----------
mongo.bson.iterator.type() and mongo.bson.iterator.next() will return this constant (10L) to indicate that the value pointer to by an iterator is a null.
mongo.bson.iterator.type()和mongo.bson.iterator.next()将返回此常数(10L)的价值指针,通过一个迭代器是一个空。