C语言求高手!!!输入年份就能显示当年月历,并能看出日期是星期几,并且...答:printf("请输入日期:\n");scanf("%d",&day);if((year%4==0&&year%100!=0||year%400==0)==1)printf("%d年 是闰年\n", year);else printf("%d年 是平年\n", year);w = second(year,month,day);printf("%d年%d月%d日 是星期%s.\n\n", year, month, day, wday[...