题解 | #出生日期输入输出#

#include<stdio.h>
struct Date_of_birth{
   int year;
   int month;
   int date;
};

int main(){
    struct Date_of_birth  day;
    int birth=0;
    do{
    scanf("%d",&birth);//输入出生日期
    int bir[8],i=7;
    while(i!=-1){
        bir[i--]=birth%10;
        birth=birth/10;
    }
    day.year=1000*bir[0]+100*bir[1]+10*bir[2]+bir[3];
    day.month=10*bir[4]+bir[5];
    day.date=10*bir[6]+bir[7];
    }while((day.year<1990||day.year>2015)||(day.month<1||day.month>12)
           ||(day.date<1||day.date>30));
    if(day.month>=10&&day.date>=10){
         printf("year=%d \nmonth=%d \ndate=%d",day.year,day.month,day.date);
    }else if(day.month>=10){
        printf("year=%d \nmonth=%d \ndate=0%d",day.year,day.month,day.date);
    }else if(day.date>=10){
          printf("year=%d \nmonth=0%d \ndate=%d",day.year,day.month,day.date);
    }else{
          printf("year=%d \nmonth=0%d \ndate=0%d",day.year,day.month,day.date);
    }
        return 0;
}