今天刚学的，嘻嘻

 1 #include<stdio.h>
 2 
 3 int main()
 4 {
 5     int day=0;
 6     scanf("%d",&day);
 7     switch(day)
 8     {
 9     case 1:
10         printf("星期一\n");
11         break;
12     case 2:
13         printf("星期二\n");
14         break;
15     case 3:
16         printf("星期三\n");
17         break;
18     case 4:
19         printf("星期四\n");
20         break;
21     case 5:
22         printf("星期五\n");            //switch多分支语句
23         break;
24     case 6:
25         printf("星期六\n");
26         break;
27     case 7:
28         printf("星期七\n");
29         break;
30     default:
31         printf("输入错误,请输入(1-7)\n");
32         break;
33     }
34     return 0;
35 }