hash code

基本解释

If a key's hash code were to change while it was in a collection, some unpredictable and confusing consequences could follow.
如果当关键字在集合中时它的散列代码被更改，那么将产生一些不可预测和容易混淆的结果。
Furthermore, before the CM agent stores the object, it executes a query in the repository if the same hash code has already been stored.
而且，在 CM 代理存储对象之前，它在储存库中执行一个查询，看储存库中是否已经存储了相同的散列码。
Changing these values would change the hash code, which would in turn break any hash table or dictionary that the object happened to be stored in.
而改变那些值的同时也改变了哈希码，然后会破坏一些哈希表或者恰好储存了对象的字典。

So what you typically do and a hash case is you design your code to deal with that.
你所需要做的就是通过设计你的代码,来解决上面的问题。
麻省理工公开课 - 计算机科学及编程导论课程节选
So let's look at the second example, all right, I keep doing that -- this piece of code from here to here gives me a way of now creating a hash table of size 256.
所以让我们来看一下第二个例子，好的，我继续做那件事,这段代码中从这里到这里,是创建一个大小为256的哈希表。
麻省理工公开课 - 计算机科学及编程导论课程节选

At the same time, it would provide an initial effort to reduce the deficit, which the negotiators call a down payment, as Congressional tax-writing committees hash out a broad overhaul of the tax code.
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