/*
    2012年10月17日8:37:04
    目的：练习枚举。
*/

# include <stdio.h>
enum weekday
{
    monday,tuesday,wednesday,thursday,friday,saturday,sunday
};
void f(enum weekday i)
{
    switch (i)
    {
        case 0:
        printf("monday!\n");
        break;
        case 1:
        printf("tuesday!\n");
        break;
        case 2:
        printf("wednesday!\n");
        break;
        case 3:
        printf("thursday!\n");
        break;
        case 4:
        printf("friday!\n");
        break;
        case 5:
        printf("saturday!\n");
        break;
        case 6:
        printf("sunday!\n");
        break;


    }
}
int main(void)
{
    while(1)
    {
        enum weekday i;
        scanf("%d", i);
        f(i);
    }

    return 0;
}
为什么输入monday之后不能输出啊？

scanf("%d", i);
这个i到底是储存整型变量的内存地址还是结构体地址，自己斟啄哈

改成这样还是不行。
        enum weekday i;
        scanf("%s", &i);
        f(i);

我是新手，请您说明白一点儿。谢谢啦！（给改一下程序）

/*
    2012年10月17日8:37:04
    目的：练习枚举。
*/

# include <stdio.h>
enum weekday
{
    monday,tuesday,wednesday,thursday,friday,saturday,sunday
};
void f(enum weekday i)
{
    switch (i)
    {
        case monday:
        printf("monday!\n");
        break;
        case tuesday:
        printf("tuesday!\n");
        break;
        case wednesday:
        printf("wednesday!\n");
        break;
        case thursday:
        printf("thursday!\n");
        break;
        case friday:
        printf("friday!\n");
        break;
        case saturday:
        printf("saturday!\n");
        break;
        case sunday:
        printf("sunday!\n");
        break;

        default:
                printf("input is error!\n");
                break;
    }
}
int main(void)
{
    while(1)
    {
        int value = 0;
        
        enum weekday i;
        scanf("%d", &value);
        i = (enum weekday)value;
        f(i);
    }

    return 0;
}

那个地方可以改成4楼的试试，但不代表我的观点

非常感谢您的矫正！
但是貌似程序还有问题啊。像这样：
tuesday
monday!
Press any key to continue

[ 本帖最后由 gaolongtou 于 2012-10-17 15:48 编辑 ]