C#面向对象基础(一) 类与对象 欢乐农场篇
面向对象 OO Object-Oriented
面向对象程序设计的思路与传统面向过程是不同地.
面向对象方法考虑的是类,让你很累的"类".
面向对象认为,程序是由对象组成. 程序运行开始,制作一大堆的对象,对象挤对对象,对象内有对象,对象之间交互... 这就是程序.
为什么要面向对象?便于理解,更接近我们的思维方式.
类与对象的关系:类是对象的图纸... 类是对象的模子,中秋快到了, 见过月饼制作木有? 什么样的模子,就有什么样的月饼...
参考农场: 造一个农场先,家场是空的?快,造一些动物出来,牛羊鸡兔...
第一版,
动物,应大家的要求设计
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConApp
{
/// <summary>
/// 动物(农场里的)
/// 名字 年龄 饿否? 位置(x,y) 色 生产 价格
/// </summary>
public class Animal
{
// 字段 存储这些数据
public string name;
public int age;
public bool ishungry;
public int x;
public int y;
public int count; //生产
public float price;
}
}
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConApp
{
/// <summary>
/// 动物(农场里的)
/// 名字 年龄 饿否? 位置(x,y) 色 生产 价格
/// </summary>
public class Animal
{
// 字段 存储这些数据
public string name;
public int age;
public bool ishungry;
public int x;
public int y;
public int count; //生产
public float price;
}
}
农场里只有四个小动物,有构造
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConApp
{
/// <summary>
/// 农场
/// </summary>
public class Farm
{
public Animal cock;
public Animal goat;
public Animal cow;
public Animal rabbit;
/// <summary>
/// 构造方法 开始建农场了 初始化
/// </summary>
public Farm()
{
Console.WriteLine("农场开始构造 building....");
cock = new Animal();
goat = new Animal();
cow = new Animal();
rabbit = new Animal();
cock.name = "cock";
cock.price =2;
cock.ishungry = true;
cock.age = 1;
cock.x = 3;
cock.y = 3;
goat.name = "goat";
goat.price = 3;
goat.ishungry = false;
goat.age = 3;
goat.x = 5;
goat.y = 5;
Console.WriteLine("农场初始化成功");
}
}
}
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConApp
{
/// <summary>
/// 农场
/// </summary>
public class Farm
{
public Animal cock;
public Animal goat;
public Animal cow;
public Animal rabbit;
/// <summary>
/// 构造方法 开始建农场了 初始化
/// </summary>
public Farm()
{
Console.WriteLine("农场开始构造 building....");
cock = new Animal();
goat = new Animal();
cow = new Animal();
rabbit = new Animal();
cock.name = "cock";
cock.price =2;
cock.ishungry = true;
cock.age = 1;
cock.x = 3;
cock.y = 3;
goat.name = "goat";
goat.price = 3;
goat.ishungry = false;
goat.age = 3;
goat.x = 5;
goat.y = 5;
Console.WriteLine("农场初始化成功");
}
}
}