封装对清除变量或常量的类型有何作用？
What does encapsulation do for clearing up the type of a variable or constant?
我目前正在通读 Apple 的 "Intro to App Development with Swift" 学生指南。在第 9 章的结尾测验 "Types"，它问：
When you're reading code and aren't sure of the type of a variable or constant, what's the quickest way to find out?
答案是：
Rewrite the section of code using different encapsulation.
但是之前没有介绍过封装的概念，所以比较迷茫。在电子书的词汇表中，它指出：
A language mechanism for restricting access to some of the object components and/or a language construct that facilitates the bundling of data with the methods of operating on that data.
谁能解释这与查找变量或常量的类型有何关系？
提前致谢。
The answer is:
Rewrite the section of code using different encapsulation.
这是一个错误的答案。正确答案是"Use Xcode's [Quick Help] inspector."
Can anyone explain how this relates to finding out about the type of a variable or constant?
这里的建议是，如果你重写源代码来创建一个私有变量public（即改变它的封装方式），这样会更容易找到有问题的变量的类型。
我目前正在通读 Apple 的 "Intro to App Development with Swift" 学生指南。在第 9 章的结尾测验 "Types"，它问：
When you're reading code and aren't sure of the type of a variable or constant, what's the quickest way to find out?
答案是：
Rewrite the section of code using different encapsulation.
但是之前没有介绍过封装的概念，所以比较迷茫。在电子书的词汇表中，它指出：
A language mechanism for restricting access to some of the object components and/or a language construct that facilitates the bundling of data with the methods of operating on that data.
谁能解释这与查找变量或常量的类型有何关系？
提前致谢。
The answer is:
Rewrite the section of code using different encapsulation.
这是一个错误的答案。正确答案是"Use Xcode's [Quick Help] inspector."
Can anyone explain how this relates to finding out about the type of a variable or constant?
这里的建议是，如果你重写源代码来创建一个私有变量public（即改变它的封装方式），这样会更容易找到有问题的变量的类型。