public static void Main()
{
try
{
// Declare a class instance box1:
PrincipalMain box1 = new PrincipalMain(30.0f, 20.0f);
// Declare an instance of the English units interface:
IEnglishDimensions eDimensions = (IEnglishDimensions)box1;
// Declare an instance of the metric units interface:
IMetricDimensions mDimensions = (IMetricDimensions)box1;
// Print dimensions in English units:
System.Console.WriteLine("Length(in): {0}", eDimensions.Length());
System.Console.WriteLine("Width (in): {0}", eDimensions.Width());
// Print dimensions in metric units:
System.Console.WriteLine("Length(cm): {0}", mDimensions.Length());
System.Console.WriteLine("Width (cm): {0}", mDimensions.Width());
}
catch (Exception exc)
{
Console.WriteLine(exc);
}
finally
{
Console.ReadKey(true);
}
}
//This sample demonstrates how to explicitly implement interface members and how to access those members from interface instances.
static void Main(string[] args)
{
// Declare a class instance "myBox":
Box myBox = new Box(30.0f, 20.0f);
// Declare an interface instance "myDimensions":
IDimensions myDimensions = (IDimensions)myBox;
// Print out the dimensions of the box:
/* The following commented lines would produce compilation
* errors because they try to access an explicitly implemented
* interface member from a class instance: */
//System.Console.WriteLine("Length: {0}", myBox.Length());
//System.Console.WriteLine("Width: {0}", myBox.Width());
/* Print out the dimensions of the box by calling the methods
* from an instance of the interface: */
System.Console.WriteLine("Length: {0}", myDimensions.Length());
System.Console.WriteLine("Width: {0}", myDimensions.Width());
// Declare an instance of the English units interface:
IEnglishDimensions eDimensions = (IEnglishDimensions)myBox;
// Declare an instance of the metric units interface:
IMetricDimensions mDimensions = (IMetricDimensions)myBox;
// Print dimensions in English units:
System.Console.WriteLine("Length(in): {0}", eDimensions.Length());
System.Console.WriteLine("Width (in): {0}", eDimensions.Width());
// Print dimensions in metric units:
System.Console.WriteLine("Length(cm): {0}", mDimensions.Length());
System.Console.WriteLine("Width (cm): {0}", mDimensions.Width());
Console.Read();
}
static void Main(string[] args)
{
Box myBox = new Box(30.0f, 20.0f);
IEnglishDimensions eDimensions = (IEnglishDimensions)myBox;
IMetricDimensions mDimensions = (IMetricDimensions)myBox;
Console.WriteLine("Length(in):{0}:", eDimensions.Length());
Console.WriteLine("Width(in):{0}:", eDimensions.Width());
Console.WriteLine("Length(cm):{0}:", mDimensions.Length());
Console.WriteLine("Width(cm):{0}:", mDimensions.Width());
Console.Read();
}
public static void Demo()
{
Box myBox = new Box(30.0f, 20.0f);
IEnglishDimensions eDimensions = (IEnglishDimensions)myBox;
IMetricDimensions mDimensions = (IMetricDimensions)myBox;
System.Console.WriteLine("Length(in): {0}", eDimensions.Length());
System.Console.WriteLine("Width (in): {0}", eDimensions.Width());
System.Console.WriteLine("Length(cm): {0}", mDimensions.Length());
System.Console.WriteLine("Width (cm): {0}", mDimensions.Width());
}
//主程序
static void Main(string[] args)
{
//定义一个实类对象"myBox":
Box myBox = new Box(30.0f, 20.0f);
//定义一个接口"eDimensions"
IEnglishDimensions eDimensions = myBox;
//定义一个接口"'mDimensions"
IMetricDimensions mDimensions = (IMetricDimensions)myBox;
//输出
Console.WriteLine("同时隐式、显式接口实现");
Console.WriteLine(" Length(in): {0}", eDimensions.Length());
Console.WriteLine(" Width (in): {0}", eDimensions.Width());
Console.WriteLine(" Length(cm): {0}", mDimensions.Length());
Console.WriteLine(" Width (cm): {0}", mDimensions.Width());
Console.WriteLine("同时隐式接口实现");
Console.WriteLine(" Length(in): {0}", eDimensions.Length());
Console.WriteLine(" Width (in): {0}", eDimensions.Width());
Console.WriteLine(" Length(cm): {0}", mDimensions.Length_1());
Console.WriteLine(" Width (cm): {0}", mDimensions.Width_1());
Console.Read();
}
public static void Main()
{
// Declare a class instance "myBox":
Box myBox = new Box(30.0f, 20.0f);
// Declare an instance of the English units interface:
IEnglishDimensions eDimensions = (IEnglishDimensions)myBox;
// Declare an instance of the metric units interface:
IMetricDimensions mDimensions = (IMetricDimensions)myBox;
// Print dimensions in English units:
System.Console.WriteLine("Length(in): {0}", eDimensions.Length());
System.Console.WriteLine("Width (in): {0}", eDimensions.Width());
// Print dimensions in metric units:
System.Console.WriteLine("Length(cm): {0}", mDimensions.Length());
System.Console.WriteLine("Width (cm): {0}", mDimensions.Width());
}
public static void Main()
{
// 声明类实例“myBox”：
Box myBox = new Box(30.0f, 20.0f);
// 声明英制单位接口的实例：
IEnglishDimensions eDimensions = (IEnglishDimensions)myBox;
// 声明公制单位接口的实例：
IMetricDimensions mDimensions = (IMetricDimensions)myBox;
// 以英制单位打印尺寸：
System.Console.WriteLine("Length(in): {0}", eDimensions.Length());
System.Console.WriteLine("Width (in): {0}", eDimensions.Width());
// 以公制单位打印尺寸：
System.Console.WriteLine("Length(cm): {0}", mDimensions.Length());
System.Console.WriteLine("Width (cm): {0}", mDimensions.Width());
}
public static void Main()
{
// Объявление экземпляра класса "myBox":
Box myBox = new Box(30.0f, 20.0f);
// Объявление экземпляра интерфейса английской системы мер:
IEnglishDimensions eDimensions = (IEnglishDimensions)myBox;
// Объявление экземпляра интерфейса метрической системы мер:
IMetricDimensions mDimensions = (IMetricDimensions)myBox;
// Печать размеров в единицах английской системы мер:
System.Console.WriteLine("Length(in): {0}", eDimensions.Length());
System.Console.WriteLine("Width (in): {0}", eDimensions.Width());
// Печать размеров в единицах метрической системы мер:
System.Console.WriteLine("Length(cm): {0}", mDimensions.Length());
System.Console.WriteLine("Width (cm): {0}", mDimensions.Width());
}
public static void Show()
{
// 声明类实例“myBox”：
MultiInterfaceDemoBox myBox = new MultiInterfaceDemoBox(30.0f, 20.0f);
// 声明英制单位接口的实例：
IEnglishDimensions eDimensions = (IEnglishDimensions)myBox;
// 声明公制单位接口的实例：
IMetricDimensions mDimensions = (IMetricDimensions)myBox;
// 以英制单位打印尺寸：
System.Console.WriteLine("IEnglishDimensions Length(in): {0}", eDimensions.Length());
System.Console.WriteLine("IEnglishDimensions Width (in): {0}", eDimensions.Width());
// 以公制单位打印尺寸：
System.Console.WriteLine("IMetricDimensions Length(cm): {0}", mDimensions.Length());
System.Console.WriteLine("IMetricDimensions Width (cm): {0}", mDimensions.Width());
}
static void Main(string[] args)
{
// Declare a class instance box1:
Box box1 = new Box(30.0f, 20.0f);
// Declare an instance of the English units interface:
IEnglishDimensions eDimensions = box1;
// Declare an instance of the metric units interface:
IMetricDimensions mDimensions = box1;
// Print dimensions in English units:
System.Console.WriteLine("Length(in): {0}", eDimensions.Length());
System.Console.WriteLine("Width (in): {0}", eDimensions.Width());
// Print dimensions in metric units:
System.Console.WriteLine("Length(cm): {0}", mDimensions.Length());
System.Console.WriteLine("Width (cm): {0}", mDimensions.Width());
}
static void Main(string[] args)
{
SampleClass sc = new SampleClass();
IControl ctrl = (IControl)sc;
ISurface srfc = (ISurface)sc;
// The following lines all call the same method.
sc.Paint();
ctrl.Paint();
srfc.Paint();
SampleClass2 obj = new SampleClass2();
//obj.Paint(); // Compiler error.
IControl c = (IControl)obj;
c.Paint(); // Calls IControl.Paint on SampleClass.
ISurface s = (ISurface)obj;
s.Paint(); // Calls ISurface.Paint on SampleClass.
//=======================================================
// Declare a class instance box1:
Box box1 = new Box(30.0f, 20.0f);
// Declare an instance of the English units interface:
IEnglishDimensions eDimensions = (IEnglishDimensions)box1;
// Declare an instance of the metric units interface:
IMetricDimensions mDimensions = (IMetricDimensions)box1;
// Print dimensions in English units:
System.Console.WriteLine("Length(in): {0}", eDimensions.Length());
System.Console.WriteLine("Width (in): {0}", eDimensions.Width());
// Print dimensions in metric units:
System.Console.WriteLine("Length(cm): {0}", mDimensions.Length());
System.Console.WriteLine("Width (cm): {0}", mDimensions.Width());
//=======================================================
Box2 box2 = new Box2(30.0f, 20.0f);
IMetricDimensions mDimensions2 = (IMetricDimensions)box2;
System.Console.WriteLine("Length(in): {0}", box2.Length());
System.Console.WriteLine("Width (in): {0}", box2.Width());
System.Console.WriteLine("Length(cm): {0}", mDimensions2.Length());
System.Console.WriteLine("Width (cm): {0}", mDimensions2.Width());
//=======================================================
// Declare a class instance box1:
Box3 box3 = new Box3(30.0f, 20.0f);
// Declare an interface instance dimensions:
IDimensions dimensions = (IDimensions)box3;
// The following commented lines would produce compilation
// errors because they try to access an explicitly implemented
// interface member from a class instance:
//System.Console.WriteLine("Length: {0}", box1.getLength());
//System.Console.WriteLine("Width: {0}", box1.getWidth());
// Print out the dimensions of the box by calling the methods
// from an instance of the interface:
System.Console.WriteLine("Length: {0}", dimensions.getLength());
System.Console.WriteLine("Width: {0}", dimensions.getWidth());
}