实现Hash的基本功能，类实现一个哈希表，该哈希表将键映射到相应的值。任何非 null 对象都可以用作键或值。为了成功地在哈希表中存储和获取对象，用作键的对象必须实现 hashCode 方法和 equals 方法。 -Hash achieve the basic functions of class implements a hash table, hash table that maps keys to values. Any non-null object can be used as

所有哈希函数的构造方法和处理冲突的方法实现-Construction methods and approach to the conflict to achieve all hash functions

param isAuxiliary true when this subtype is auxiliary, false otherwise. .... If hashCode() of this subtype is 0 and you want to specify it as an id of this subtype,.