摘要：
package jiekou3; public interface Vehicle { public void start(); public void stop(); } package jiekou3; public class Car implements Vehicle { public void start() { ... 阅读全文
摘要：
package mianxiangjiekou; public class Computer { String brand; public void coonnect(Usb u){ System.out.println("获取数据："+u.getData()); } } package mianxiangjiekou; public class Phone impl... 阅读全文