public class JiShu{
static void Func(){
for(int j = 1; j<=1000;j++){
if(j%2==1)
System.out.println(j);
}
}
public static void main(String[] args){
int number = 0;
int now = 1;
for(int i = 1;i<=1000;i++){
if(now++%2==1){
number++;
}
}
System.out.println("1到1000的奇数有"+number+"个");
JiShu.Func();
}
}