给定出生年月日及现在年月日，计算天数

#include<stdio.h>
int main()
{
int F(int ,int );
int K(int );
int year1,month1,day1,a,b,h,m,n;
int year,month,day,d,e,f=0,g;
printf(“请输入以前年月日:”);
scanf("%d %d %d",&year1,&month1,&day1);
printf(“请输入现在年月日:”);
scanf("%d %d %d",&year,&month,&day);
a=F(month1,day1);
if(K(year1)1&&(month1>=3))
a=a+1;
d=F(month,day);
if(K( year )1&&(month>=3))
d=d+1;
if(year1>year)
printf(“输入错误”);
if(year1year)
{
if(month1>month)
printf(“输入错误”);
if((month1month)&&(day1<day))
printf("%d年%d月%d日距离%d年%d月%d日总共是%d天",year1,month1,day1,year,month,day,day-day1);
if((month1==month)&&(day1>day))
printf(“输入错误”);
if(month1<month)
{
h=F(month1,day1);
m=F(month,day);
n=m-h;
printf("%d年%d月%d日距离%d年%d月%d日总共是%d天",year1,month1,day1,year,month,day,n);
}
}
if(year1<year)
{
for(e=year1+1;e<=year-1;e++)
{
if(K(year)1)
f=f+366;
else
f=f+365;
}
if(K(year1)1)
g=f+d+366-a;
else
g=f+d+365-a;
printf("%d年%d月%d日距离现在%d年%d月%d日总共是%d天",year1,month1,day1,year,month,day,g);
}
return 0;
}
int F(int month,int day)
{
int i,b[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
for(i=1;i<=month-1;i++)
{
day=day+b[i];
}
return day;
}
int K(int year)
{
int c;
c=year%40&&year%100!=0||year%4000;
return c;
}