在做一个试题,里面的题目的代码都是标有序号的,怎么批量删除呢?一条条删除太浪费时间!例如下面,怎么把10.,20.,30.,...这些序号批量删除呢?
- interface Jumper{public void jump();} ...
- class Animal{} ...
- class Dog extends Animal{
- Tail tail;
- } ...
- class Beagle extends Dog implements Jumper{
- public void jump(){}
- } ...
- class Cat implements Jumper{
- public void jump(){}
- }