sun = 1!+2!+3!+4!........10!
public class JieCheng {
public static void main(String[] args) {
// TODO Auto-generated method stub
long sun = 0;
long i = 1;
for( int j = 1; j <= 10; j++){
i *= j;
sun += i;
}
System.out.println("sun = " + sun);
}
}
运行结果:
sun = 4037913