//1-5输出工作日,6-7输出休息日 #include<stdio.h> int main() { int day = 0; scanf("%d",&day); switch (day) { case 1: case 2: case 3: case 4: case 5: printf("工作日\n"); break; case 6: case 7: printf("休息日\n"); break; default: //处理异常时(输入值不满足-7时),用default printf("输入错误\n"); break; } return 0; }