#include<stdio.h> main() { int number,lay1,lay2,lay3; number=getchar(); putchar(number);

lay1=number%4; lay2=number%100; lay3=number%400;

if (lay1==0) {if(lay2==0)

{if(lay3==0) printf("This year is a leap year!"); else printf("This year is not a leap year!"); } else ; } else printf("This year is not a leap year!"); }

再后来改成这样了，编译成功了，可是却没有办法显示了。