1 回答year%100！=0

1 回答 if(year%100==0&&year%400==0||year%4==0&&year%100!=0)i=1;

1 回答year%4==0&&year%100!=0||year%400==0

2 回答if((year%4 == 0 || year%400 == 0) && (year%100 != 0))

2 回答if(year%4==0&&year%100!=0||year%400==0)