与抽象级别类似的是黑箱视图(不显示实现细节的较高级别)和白箱视图(显示事物工作方式的内部视图)。

An analogy that applies to levels of abstraction is that of a black-box view (a higher level that does not show implementation details) and a white-box view (an inside look at how things work).

youdao

这显示实现snoopy操作的SnoopMBean代码接收并使用了传递给wsadmin中的invoke调用的lookit字符串。

Which shows that the string lookit, which was passed to the invoke call in wsadmin, was received and used by the SnoopMBean code that implements the snoopy operation.

youdao

清单4了显示实现visit (Code)和visit (CodeException)的第一步，它将积累方法中所有catch块的信息。

Listing 4 shows a first cut at an implementation of visit (Code) and visit (CodeException) that accumulates information about all the catch blocks in a method.

youdao

It means anybody using that little function get float doesn't have to worry about what's inside of it. So for example, I decide I want to change the message I print out, I don't have to change the function, I just pass in a different parameter.

这代表着用这个方法去获得浮点数,的任何人都不用担心具体的实现了,例如，如果我想改变下,显示的信息的话，我不必去改变方法，我传个不同的参数就可以了。

麻省理工公开课 - 计算机科学及编程导论课程节选