What is an enumeration type and what exactly is an enumeration type used for?

A term that appears in programming. It may not have the same meaning as in Chinese.

I know that there has been this problem before, and it is too long to reproduce.

It's about trying everything possible.

The enumeration type is actually an integer, and its function is to make the value look more intuitive, and to delineate a range, in which the value is confined to it.

1. If you need several possible values for a variable, then it can be defined as an enumeration type. The reason why it is called enumeration is to enumerate the possible situations of variables or objects, which can also be said to be possible values.

2. Let's take an example to illustrate, in order to make everyone more clear, for example, there is a pen in a pencil case, but you don't know what kind of pen it is before you open it, it may be a pencil or a fountain pen, there are two possibilities, then you can define an enumeration type to represent it!

enum box;Here you define an enumeration type variable called box, which contains two elements, also called enumeration elements, here pencil and pen, which represent pencil and pen, respectively.

3. I want to say here that if you want to define two variables with the same feature enumeration type, then you can define them in the following two ways!

enum box;

enum box box2;Or abbreviated as box box2;

The other is to define it at the time of declaration.

enum box,box2;Define while declaring!

The enumeration element system in the enumerated variables is treated according to constants, so it is called enumeration constants, and they cannot be assigned by ordinary arithmetic, (pencil=1; That's wrong, but you can assign a value when you declare it!

enum box;

4. But one thing to pay special attention to here is that if you don't do the element assignment operation, then the element will be automatically incremented by the system from 0 to the automatic assignment operation, when it comes to automatic assignment, if you only define the first one, then the system will add 1 to the value of the previous element for the next element, for example.

enum box;Here pen is 4, and the system will automatically assign the definition of pen=4.

What enumeration: too many to enumerate, not to mention to enumerate, not to enumerate, etc.

1. The list goes on: sheng (old reading shēng), exhaustion. pcs, pcs. It's impossible to list them all. There are many people or things that describe the same kind.

2. To enumerate: too many to mention; The number is too numerous to list them all.

3. Non-enumerable: There are so many descriptions that it is impossible to calculate.

Related example sentences. 1. In addition to the stars of the Milky Way, there are countless stars in the extragalactic galaxy, which is really too numerous to mention.

2. However, in general, there have been many studies on the theory and practice of new rural construction, and there are countless literatures on the logistics of modern agricultural products, but it is rare to combine the two.

3. In the face of such a high tax rate, no matter which enterprise in China can not afford it, many enterprises have to withdraw from the market share they have occupied, and some have even been completely expelled from the original market, there are countless such cases.

4. In the exhibition hall, from the work boots worn by oil workers to the offshore oil drill tower, there are many kinds of products.

5. There are countless people who make money without hard work, but there are only those who squander without hard work.

6. In the history of our country, whenever the country and the nation are in a critical moment of survival, Muslims have stepped forward, are not afraid of bloodshed and sacrifice, and have served the country with countless heroic deeds.

Explanation of enumeration.

enumerate]

List them one by one Explain them in detail One by one. "Preface to the Biography of Northern History: Enxing": During this period, there were many people who stole officials and sold their lords, and there were many people who insulted the palace, and they could not be enumerated.

Shu Wuyi" "It is in Zujia, the king of injustice" Song Cai Shen Ji biography: "The following Zhou Gongyan is from King Yin Zhongzong and Gaozong and Zujia and I King Wen of Zhou. and the clouds, because of their order and enumeration of words.

Qing Li Yu "Idle Love, Lyrics, Music, and Structure": There are so many of them that they cannot be enumerated. ”

Word decomposition Explanation of the piece Piece é trunk: cut its strips. In ancient times, the equipment used to prevent the noise of the soldiers during the march was like a chopstick, and it was held in the mouth

It is also like a soldier who goes to the enemy, and walks quickly, not hearing orders, but hearing the sound of the forest with men and horses." Horsewhip: in the number of pieces (?

Closed (pointing to the door with a horsewhip). The quantifier, equivalent to "個", is mostly used to explain lift (lift) ǔ to lift up, to lift up: to lift the head.

Hands. Weightlifting. Indecisive.

Action Behavior: Manners. Easy.

Initiate, set up: raise righteousness. Held.

Initiative. Present: Raise the essentials.

Example. Elected, Qiao Chun shirt recommendation: Recommended.

Recommendations. Quan: The whole country.

All over the world. Family. Ancient fingers.