题目：输入某年某月某日，判断这一天是这一年的第几天？
import java.util.Scanner;
public class date {
public static void main(String[] args)
{
Scanner r = new Scanner(System.in);
System.out.println("请输入年份");
int y = r.nextInt();
System.out.println("请输入月份");
int m = r.nextInt();
System.out.println("请输入日");
int d = r.nextInt();
int count=0;
for(int i=1;i<m;i++)
{
if(i==1||i==3||i==5||i==7||i==8||i==10||i==12)
{
count+=31;
}
else if(i==2)
{
if((y%4==0&&y0!=0)||(y@0==0))
{
count+=29;
}
else
{
count+=28;
}
}
else
{
count+=30;
}
}
count+=d;
System.out.println(count);
}
}
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