该程序主要意图是实现构造函数的重写即在一个类里面可以写多个与其类名相同但参数类型不同的方法即构造函数
using System;
public class Square
{
private int sidelong;
public Square()
{
Console.WriteLine ("我没有参数.");
}
public Square(int sidelong)
{
this.sidelong=sidelong;
}
public int Setsidelong(int sidelong)
{
this.sidelong=sidelong;
return sidelong;
}
public int Getsidelong(int sidelong)
{
return sidelong;
}
public void Print()
{
Console.WriteLine ("当前正方形的边长是：{0}",sidelong);
}
}
class Square_Test
{
public static void Main()
{
Square s1=new Square ();
s1.Setsidelong (4);
s1.Print ();
Square s2=new Square ();
}
}
