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This article mainly explains "how to use the structures and enumerations in C++", interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Now let the editor take you to learn how to use structures and enumerations in C++.

1. The use of struct

Use struct to define a structure:

Struct Book

{

Char bookName [10]

Char publisher [20]

Char isbn [11]

} Book

Definition of structural body variables:

Struct Book tmpBook

To access the data in a structure variable:

TmpBook.isbn

TmpBook.publisher

TmpBook.bookName

2. The use of enum

Use enum to define enumerations:

Enum CMD

{

Quit = 0, add = 1, search, sort

}

Define enumerated variables:

CMD cmd

Assign values to enumerated variables:

Int input = 0

Cmd = (CMD) input

You can also assign values like this:

Cmd = quit

To access the value of an enumerated variable, you can use the.

Some people may want to know the difference between structures and classes. In C++, structures have no member functions, that is, only properties, but no functions; while classes have member functions and member variables. Another thing is that the default access property is different. In the structure, the default access property is public, while the class defaults to private if it is not declared.

At this point, I believe you have a better understanding of "how to use the structures and enumerations in C++". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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