#include "stdio.h" typedef struct{ int day; int year; }indate; typedef struct{ int day; int month; int year; }opdate; bool Isleap(int d); void caltime(indate *dd, opdate *dt); int main(){ indate ti = { 0, 0 }; opdate time = { 0, 0, 0 }; //Time(&ti); do{ printf("input the year and the day's number (year num)\n"); scanf("%d %d", &ti.year, &ti.day); } while (ti.day<1 || (ti.day>366 && Isleap(ti.year))||(ti.day>365 && !Isleap(ti.year))); caltime(&ti, &time); printf("The date is %d/%d/%d (d/m/y)\n", time.day, time.month, time.year); } bool Isleap(int d){ int answer; if ((d % 4 == 0 && d % 100 != 0) || d % 400 == 0){ answer = 1; } else{ answer = 0; } return answer; } void caltime(indate *dd, opdate *dt){ int mnth[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }; int yer = dd->year; int idx = 0; int mnday = 0; if (Isleap(yer)){ mnth[1]=29; } while (mnday < dd->day){ mnday += mnth[idx]; idx++; } dt->year = dd->year; dt->month = idx; dt->day = mnth[idx - 1] - (mnday - dd->day); }
输入年和第几天算日期
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转载自blog.csdn.net/jzjz73/article/details/78035179
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