#include
#include
#include
#define str " sun mon tue wed thu fri sat "
void menu(); //操作選單
int leap(int year); //判斷某年是不是閏年
int days_month(int year,int month); //返回某月的天數
int someday(int year,int month,int day); //計算某天是星期幾
void search_month(int year,int month); //輸出某月的日曆
void search_someday(int year,int month,int day); //查詢某日是星期幾
int main()
printf("---------*********************------------\n\n\n");
break;
case 2:
printf("請輸入您所要查詢的相關資訊.\n");
printf("年份：");scanf("%d",&year);
printf("月份：");scanf("%d",&month);
k1=1;
while(k1)
else k1=0;
} search_month(year,month);
printf("---------*********************------------\n\n\n");
break;
case 3:
printf("請輸入你要查詢的日期\n");
printf("年份：");scanf("%d",&year);
printf("月份：");scanf("%d",&month);
k2=1;
while(k2)
else k2=0;
} // printf("%d年%d月有%d天\n",year,month,days_month(year,month)); 除錯觀察輸入的日期是否有誤，可忽略
printf("日期：");scanf("%d",&day);
k3=1;
while(k3)
else k3=0;
} search_someday(year,month,day);
printf("---------*********************------------\n\n\n");break;
case 4:exit(0);
printf("---------*********************------------\n\n\n");break;
default:
k4=1;
while(k4)
break;
}}while(i>0&&i<5);
return 0;
}void menu()
int leap(int year)
int days_month(int year,int month)
else days_month = 28;break;
}return days_month;
}int someday(int year,int month,int day)
} else
else if(i>=10)}}
printf("\n------------------------------------------\n");
}void exit()
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