枚举是C语言中的用户定义数据类型。它用于给整数常量赋予名称，使程序易于阅读和维护。关键字“enum”用于声明一个枚举。

以下是C语言中枚举的语法：

enum enum_name{const1, const2, ....... };

The enum keyword is also used to define the variables of enum type. There are two ways to define the variables of enum type as follows.

enum week{sunday, monday, tuesday, wednesday, thursday, friday, saturday};
enum week day;

Here is an example of enum in C language,

Example

#include<stdio.h>
enum week{Mon=10, Tue, Wed, Thur, Fri=10, Sat=16, Sun};
enum day{Mond, Tues, Wedn, Thurs, Frid=18, Satu=11, Sund};
int main() {
   printf("The value of enum week: %d\t%d\t%d\t%d\t%d\t%d\t%d\n\n",Mon , Tue, Wed, Thur, Fri, Sat,    Sun);
   printf("The default value of enum day: %d\t%d\t%d\t%d\t%d\t%d\t%d",Mond , Tues, Wedn, Thurs, Frid,    Satu, Sund);
   return 0;
}

输出

The value of enum week: 10111213101617
The default value of enum day: 0123181112