#include <stdio.h> int february_day_num(int year_num); int main() { /* 定义需要计算的日期 */ int year = 2008; //需计算的年 int month = 8; //需计算的月 int day = 8; //需计算的日 int february; int num; /*使用switch来判断月对应天数*/ switch(month) { case 1: num=day; break; case 2: num=31+day; break; case 3: num=31+day;break; case 4: num=31*2+day;break; case 5: num=31*2+30+day;break; case 6: num=31*3+30+day;break; case 7: num=31*3+30*2+day;break; case 8: num=31*4+30*2+day;break; case 9: num=31*5+30*2+day;break; case 10: num=31*5+30*3+day;break; case 11: num=31*6+30*3+day;break; case 12: num=31*6+30*4+day;break; default: printf("一年是十二个月哦。");break; } /*二月的天数*/ february = february_day_num(year); if(year>2) { num += february; } printf("%d年%d月%d日是该年的第%d天", year, month, day, num); return 0; } /*二月的天数判断*/ int february_day_num(int year_num) { if(year_num%4==0||year_num%400==0) { if(year_num%100!=0) { year_num = 29; } } else { year_num = 28; } return year_num; }
如何用C语言计算一年有多少天
2016-05-28 21:11:56 来源:慕课网