?? varstruct.c
字號(hào):
/* 計(jì)算天數(shù) */
# include <stdio.h>
struct
{
int year;
int month;
int day;
} data; /* 定義一個(gè)結(jié)構(gòu)并聲明對(duì)象為data */
void main()
{
int days;
printf("請(qǐng)輸入日期(年、月、日):");
scanf("%d, %d, %d", &data.year, &data.month, &data.day);
switch(data.month)
{
case 1: days = data.day;
break;
case 2: days = data.day+31;
break;
case 3: days = data.day+59;
break;
case 4: days = data.day+90;
break;
case 5: days = data.day+120;
break;
case 6: days = data.day+151;
break;
case 7: days = data.day+181;
break;
case 8: days = data.day+212;
break;
case 9: days = data.day+243;
break;
case 10: days = data.day+273;
break;
case 11: days = data.day+304;
break;
case 12: days = data.day+334;
break;
}
if(data.year%4==0&&data.year%100!=0 || data.year%400==0)
if(data.month>=3)
days = days + 1;
printf("%d月%d日是%d年的第%d天.\n", data.month, data.day, data.year, days);
}
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