public void InitOnlySetterSample1()
{
Alphard alphard = new Alphard {
Brand = "Toyota", TypeName = "Alphard", Color = "Red", Year = 2020
};
//alphard.TypeName = "BMW"; //錯誤
alphard.Color = "White";
}
public static IToyota CreateInstance(ToyotaType toyotaType)
{
IToyota toyota;
switch (toyotaType)
{
case ToyotaType.Alphard:
toyota = new Alphard();
break;
case ToyotaType.Camry:
toyota = new Camry();
break;
case ToyotaType.Corolla:
toyota = new Corolla();
break;
default:
throw new Exception("IToyota CreateInstance error...");
}
return(toyota);
}
public static IToyota CreateInstanceConfig()
{
ToyotaType toyotaType = (ToyotaType)Enum.Parse(typeof(ToyotaType), ToyotaTypeConfig);//字符串转枚举
IToyota toyota;
switch (toyotaType)
{
case ToyotaType.Alphard:
toyota = new Alphard();
break;
case ToyotaType.Camry:
toyota = new Camry();
break;
case ToyotaType.Corolla:
toyota = new Corolla();
break;
default:
throw new Exception("IToyota CreateInstance error...");
}
return(toyota);
}
public void DriveAlphard(Alphard car)
{
Console.WriteLine($"{this.Name} driving...");
car.Drive();
}
static void Main(string[] args)
{
try
{
Player Player = new Player()
{
Name = "菜虚鲲"
};
{
//面向细节，依赖细节
Alphard Alphard = new Alphard();
Camry Camry = new Camry();
Corolla Corolla = new Corolla();
Player.DriveAlphard(Alphard);
Player.DriveCamry(Camry);
Player.DriveCorolla(Corolla);
Console.WriteLine("*******************面向细节，依赖细节，上层使用者自行实例化下层对象并使用********************");
Console.WriteLine();
}
{
//面向接口，依赖细节
IToyota Alphard = new Alphard();
IToyota Camry = new Camry();
IToyota Corolla = new Corolla();
Player.DriveToyota(Alphard);
Player.DriveToyota(Camry);
Player.DriveToyota(Corolla);
Console.WriteLine("*******************面向接口，依赖细节，上层使用者自行实例化下层对象并使用********************");
Console.WriteLine();
}
{
//面向接口，依赖工厂；使用枚举参数做对象选择条件
IToyota Alphard = ToyotaFactory.CreateInstance(ToyotaFactory.ToyotaType.Alphard);
IToyota Camry = ToyotaFactory.CreateInstance(ToyotaFactory.ToyotaType.Camry);
IToyota Corolla = ToyotaFactory.CreateInstance(ToyotaFactory.ToyotaType.Corolla);
Player.DriveToyota(Alphard);
Player.DriveToyota(Camry);
Player.DriveToyota(Corolla);
Console.WriteLine("*******************面向接口，依赖工厂；使用枚举参数做对象选择条件，上层使用者不需要自行实例化下层对象，只需要按需从工厂类拿对象********************");
Console.WriteLine();
}
{
//面向接口，依赖工厂；使用配置做对象选择条件
IToyota car = ToyotaFactory.CreateInstanceConfig();
Player.DriveToyota(car);
Console.WriteLine("*******************面向接口，依赖工厂；使用配置做对象选择条件，上层使用者不需要自行实例化下层对象，只需要按需从工厂类拿对象********************");
Console.WriteLine();
}
{
//面向接口，依赖工厂；使用配置+反射(方便扩展)做对象选择条件
IToyota car = ToyotaFactory.CreateInstanceConfigReflection();
Player.DriveToyota(car);
Console.WriteLine("*******************面向接口，依赖工厂；使用配置+反射(方便扩展)做对象选择条件，上层使用者不需要自行实例化下层对象，只需要按需从工厂类拿对象********************");
Console.WriteLine();
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
Console.Read();
}
