Question

C语言程序设计 输入数字1-7，输出对应的星期几（switch)

Answer 1

程序流程如下：

1 输入变量a；

2 对变量a进行判断(switch(a));

3 根据a值输出对应的字符串；

4 程序结束。

代码如下：

#include <stdio.h>
int main()
{
    int a;
    scanf("%d",&a);//输入a
    switch(a)
    {
        case 1:
            printf("星期一\n");
            break;
        case 2:
            printf("星期二\n");
            break;    
        case 3:
            printf("星期三\n");
            break;
        case 4:
            printf("星期四\n");
            break;            
        case 5:
            printf("星期五\n");
            break;            
        case 6:
            printf("星期六\n");
            break;            
        case 7:
            printf("星期日\n");
            break;            
        default:
            printf("错误输入\n");
            break;
    }
    return 0;
}

Answer 2

#include <stdio.h>
int main()
{
char *a[]={"Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"};
int i;
scanf("%d",&i);
switch(i)
{
case 1: printf("%s\n",a[i-1]);break;

case 2: printf("%s\n",a[i-1]);break;
case 3: printf("%s\n",a[i-1]);break;
case 4: printf("%s\n",a[i-1]);break;
case 5: printf("%s\n",a[i-1]);break;
case 6: printf("%s\n",a[i-1]);break;
case 7: printf("%s\n",a[i-1]);break;
}
return 0;
}