三、 定义一个点类Point,在Main函数中建立Point对象并显示点对.如:Point#1 四、 定义一个圆类,包
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![三、 定义一个点类Point,在Main函数中建立Point对象并显示点对.如:Point#1 四、 定义一个圆类,包](/uploads/image/z/4314954-66-4.jpg?t=%E4%B8%89%E3%80%81+%E5%AE%9A%E4%B9%89%E4%B8%80%E4%B8%AA%E7%82%B9%E7%B1%BBPoint%2C%E5%9C%A8Main%E5%87%BD%E6%95%B0%E4%B8%AD%E5%BB%BA%E7%AB%8BPoint%E5%AF%B9%E8%B1%A1%E5%B9%B6%E6%98%BE%E7%A4%BA%E7%82%B9%E5%AF%B9.%E5%A6%82%EF%BC%9APoint%231+%E5%9B%9B%E3%80%81+%E5%AE%9A%E4%B9%89%E4%B8%80%E4%B8%AA%E5%9C%86%E7%B1%BB%2C%E5%8C%85)
三、 定义一个点类Point,在Main函数中建立Point对象并显示点对.如:Point#1 四、 定义一个圆类,包
三、 定义一个点类Point,在Main函数中建立Point对象并显示点对.如:Point#1 四、 定义一个圆类,包
三、 定义一个点类Point,在Main函数中建立Point对象并显示点对.如:Point#1 四、 定义一个圆类,包
using System;
using System.Collections.Generic;
using System.Text;
namespace ConsoleApplication1
{
public class Point
{
public int X;
public int Y;
public Point(int x,int y)
{
this.X = x;
this.Y = y;
}
public override string ToString()
{
return string.Format("",X,Y);
}
}
class Program
{
static void Main(string[] args)
{
Point p1 = new Point(15,20);
Point p2 = new Point(3,4);
Console.WriteLine("point#1" + p1.ToString() +".");
Console.WriteLine("point#2" + p2.ToString() + ".");
}
}
}
////
圆类:
public class Circle
{
protected double r;
public double Radius
{
get
{
return r;
}
set
{
if (value < 0)
throw new Exception("Out of range!");
r = value;
}
}
public Circle()
{
this.r = 10;
}
public Circle(double r)
{
this.Radius = r;
}
public double area()
{
return Math.PI * Radius * Radius;
}
}