package myPackage;
public class Main {
static int res=1;
public static void main(String[]args) {
for(int i=0;i<20;i++) {
res+=4*i;
}
System.out.println(res);
}
}
结果为761
package myPackage;
public class Main {
static int res=1;
public static void main(String[]args) {
for(int i=0;i<20;i++) {
res+=4*i;
}
System.out.println(res);
}
}
结果为761