using System;
namespace C11_2
{
public interface IShape
{
int Area
{
get;
set;
}
void Caculate();
}
public class Square : IShape
{
int b = 0;
#region IShape 成員
public int Area
{
get
{
return b * b;
}
set
{
b = value;
}
}
public void Caculate()
{
Console.WriteLine("開始計算面積....");
}
#endregion
}
public class MyClass
{
public MyClass(IShape shape)
{
shape.Caculate();
Console.WriteLine("正方形的面積為:{0}",shape.Area);
}
public IShape MyOutput(IShape shape)
{
//shape.Area = 100; //也可以在這裡修改正方形的邊長
return shape;
}
}
public class Test
{
public static void Main()
{
Console.WriteLine("請輸入正方形邊長:");
//建立Square類別變數square,並使用其作為參數建立MyClass 形變數myClass
Square square = new Square();
square.Area = Convert.ToInt32(Console.ReadLine());
MyClass myClass = new MyClass(square);
//獲取回傳值,並輸出其面積Area屬性
Square square2 = (Square)myClass.MyOutput(square);
Console.WriteLine("獲取回傳值,輸出面積Area為:{0}",square2.Area);
}
}
}
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