JAVA-4-斐波列

 public class Ch049 {

     public static void main(String[] args) {
         // TODO 自动生成的方法存根

         int a = 1, b = 1;
         for (int i = 1; i <= 20; i++) {

             System.out.print(a + "\t");
             if (i % 5 == 0) {
                 System.out.println();
             }
             b = b + a;
             a = b - a;
         }

     }

 }