#include<stdio.h>

enum Color{Red=1,Blue,Green} color;/*定义枚举变量，并初始化*/

int main()

{

int icolor; /*定义整型变量*/

scanf("%d",&icolor); /*输入数据*/

switch(icolor) /*判断icolor值*/

{

case Red: /*枚举常量，Red表示1*/

printf("the choice is Red\n");

break;

case Blue: /*枚举常量，Blue表示2*/

printf("the choice is Blue\n");

break;

case Green: /*枚举常量，Green表示3*/

printf("the choice is Green\n");

break;

default:

printf("???\n");

break;

}

return 0;

}