The function has no effect if an exception is thrown, unless it is thrown by the container's hash function or comparison function. 如果抛出异常，则该函数没有作用，除非异常是从容器的散列函数或比较函数中抛出的。
There is more information on hash functions and equality predicates in the next section. 在下一节中，有更多的关于散列函数和等同性谓词的信息。
Serves as a hash function for this object. 作为此对象的哈希函数。
Hash functions are commonly used with digital signatures and for data integrity. 哈希函数通常用于数字签名和保持数据完整性。
