#include <stdio.h>int main() { /* 定義需要計算的日期 */ int year = 2008; int month = 8; int day = 8; int sum=0; int i; for(i<1; i<month; i++) { switch(i) { case 1: sum +=31; break; case 2: if(year%400==0 || (year%4==0&&year%100!=0)) { sum +=29; } else { sum+=28; } break; case 3: sum+=31; break; case 4: sum+=30; break; case 5: sum+=31; break; case 6: sum+=30; break; case 7: sum+=31; break; case 8: sum+=31; break; case 9: sum+=30; break; case 10: sum+=31; break; case 11: sum+=30; break; case 12: sum+=31; break; } } sum+=day; printf("%d年%d月%d日是該年的第%d天",year,month,day,sum); return 0;}