C++程序:给出年月日,计算该日是该年的第几天答:printf("%d年%d月%d日", year, month, day);days = sum_day(month, day);if(leap(year) && month>=3)days = days + 1;printf("是该年的第%d天.\n", days);getch();} static int day_tab[13] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};int sum_...
C语言编程(程序怎样编写):给定年、月、日,计算该日是该年的第几天,然 ...答:/**程序描述:给定年、月、日,计算该日是该年的第几天,然后计算该日是星期几。*/#include <stdio.h>int mon[]={31,28,31,30,31,30,31,31,30,31,30,31};int leap_year(int n){ if(n%400==0||(n%4==0 && n%100!=0)) return 1; else return 0;}int cal...
...编写程序:根据输入的年、月、日,求出该日是这一年中的第几天...答:int main(){ int a[12] = {31,28,31,30,31,30,31,31,30,31,30,31};printf("请输入年月日(YYYY-MM-DD):");char s[11] = {'\0'},year[5] = {'\0'},month[3] = {'\0'},day[3] = {'\0'};int y,m,d,sum = 0;scanf("%s", &s);int size = strlen(s);f...