quyanhui

摘要： 基类User：package com.model;public class User {}定义接口UserService：package com.service;import com.model.User;public interface UserService { public void save(User user); public void update(User user);}定义实现类UserServicImpl：package com.service.impl;import com.model.User;import com.service.UserService;pu... 阅读全文

摘要： 主类Test：public class D201 {//get set 方法略去 private String d201_01; private String d201_02; private String d201_03; private String d201_04; private String d201_05; @Override public String toString() { System.out.println(super.toString()); return "abc"; }}调用D... 阅读全文