static void Main(string[] args)
{
long BeginMemoryUsage, ArrayMemoryUsage,
EmptyClassObjectMemoryUsage, BaseClassObjectMemoryUsage, DerivedClassObjectMemoryUsage;
int[] localNumber;
#region 量測 int[1024] 的耗用記憶體
BeginMemoryUsage = GC.GetTotalMemory(true);
localNumber = new int[1024];
ArrayMemoryUsage = GC.GetTotalMemory(true);
Console.WriteLine("量測 int[1024] 的耗用記憶體");
Console.WriteLine($"int[1024] 耗用記憶體 : {ArrayMemoryUsage - BeginMemoryUsage} ");
Console.WriteLine("Press any key for continuing...");
Console.ReadKey();
#endregion
#region 量測單純繼承之物件使用記憶體使用情況
BeginMemoryUsage = GC.GetTotalMemory(true);
ByInheritance.MyEmptyClass fooMyEmptyClass = new ByInheritance.MyEmptyClass();
EmptyClassObjectMemoryUsage = GC.GetTotalMemory(true);
ByInheritance.MyBaseClase fooMyBaseClassObject = new ByInheritance.MyBaseClase();
BaseClassObjectMemoryUsage = GC.GetTotalMemory(true);
ByInheritance.MyDerivedClass fooMyDerivedClassObject = new ByInheritance.MyDerivedClass();
DerivedClassObjectMemoryUsage = GC.GetTotalMemory(true);
Console.WriteLine("量測單純繼承之物件使用記憶體使用情況");
Console.WriteLine($"產生空類別 之執行個體耗用記憶體 : {EmptyClassObjectMemoryUsage - BeginMemoryUsage} ");
Console.WriteLine($"建立基底類別之執行個體耗用記憶體 : {BaseClassObjectMemoryUsage - EmptyClassObjectMemoryUsage} ");
Console.WriteLine($"建立衍生類別之執行個體耗用記憶體 : {DerivedClassObjectMemoryUsage - BaseClassObjectMemoryUsage} ");
Console.WriteLine($"衍生類別之執行個體 與 基底類別之執行個體 記憶體相差數量 : " +
$"{(BaseClassObjectMemoryUsage - EmptyClassObjectMemoryUsage) - (DerivedClassObjectMemoryUsage - BaseClassObjectMemoryUsage)} ");
Console.WriteLine("Press any key for continuing...");
Console.ReadKey();
#endregion
#region 量測繼承與多型覆寫之物件使用記憶體使用情況
BeginMemoryUsage = GC.GetTotalMemory(true);
ByInheritancePolymorphismOverride.MyEmptyClass fooInheritancePolymorphismMyEmptyClass = new ByInheritancePolymorphismOverride.MyEmptyClass();
EmptyClassObjectMemoryUsage = GC.GetTotalMemory(true);
ByInheritancePolymorphismOverride.MyBaseClase fooInheritancePolymorphismMyBaseClassObject = new ByInheritancePolymorphismOverride.MyBaseClase();
BaseClassObjectMemoryUsage = GC.GetTotalMemory(true);
ByInheritancePolymorphismOverride.MyDerivedClass fooInheritancePolymorphismMyDerivedClassObject = new ByInheritancePolymorphismOverride.MyDerivedClass();
DerivedClassObjectMemoryUsage = GC.GetTotalMemory(true);
var foo = (ByInheritancePolymorphismOverride.MyBaseClase)fooInheritancePolymorphismMyDerivedClassObject;
Console.WriteLine("量測繼承與多型覆寫之物件使用記憶體使用情況");
Console.WriteLine($"產生空類別 之執行個體耗用記憶體 : {EmptyClassObjectMemoryUsage - BeginMemoryUsage} ");
Console.WriteLine($"建立基底類別之執行個體耗用記憶體 : {BaseClassObjectMemoryUsage - EmptyClassObjectMemoryUsage} ");
Console.WriteLine($"建立衍生類別之執行個體耗用記憶體 : {DerivedClassObjectMemoryUsage - BaseClassObjectMemoryUsage} ");
Console.WriteLine($"衍生類別之執行個體 與 基底類別之執行個體 記憶體相差數量 : " +
$"{(DerivedClassObjectMemoryUsage - BaseClassObjectMemoryUsage)- (BaseClassObjectMemoryUsage - EmptyClassObjectMemoryUsage)} ");
Console.WriteLine("Press any key for continuing...");
Console.ReadKey();
#endregion
#region 量測繼承與多型隱藏之物件使用記憶體使用情況
BeginMemoryUsage = GC.GetTotalMemory(true);
ByInheritancePolymorphismNew.MyEmptyClass fooInheritancePolymorphismNewMyEmptyClass = new ByInheritancePolymorphismNew.MyEmptyClass();
EmptyClassObjectMemoryUsage = GC.GetTotalMemory(true);
ByInheritancePolymorphismNew.MyBaseClase fooInheritancePolymorphismNewMyBaseClassObject = new ByInheritancePolymorphismNew.MyBaseClase();
BaseClassObjectMemoryUsage = GC.GetTotalMemory(true);
ByInheritancePolymorphismNew.MyDerivedClass fooInheritancePolymorphismNewMyDerivedClassObject = new ByInheritancePolymorphismNew.MyDerivedClass();
DerivedClassObjectMemoryUsage = GC.GetTotalMemory(true);
var foo1 = (ByInheritancePolymorphismOverride.MyBaseClase)fooInheritancePolymorphismMyDerivedClassObject;
Console.WriteLine("量測繼承與多型隱藏之物件使用記憶體使用情況");
Console.WriteLine($"產生空類別 之執行個體耗用記憶體 : {EmptyClassObjectMemoryUsage - BeginMemoryUsage} ");
Console.WriteLine($"建立基底類別之執行個體耗用記憶體 : {BaseClassObjectMemoryUsage - EmptyClassObjectMemoryUsage} ");
Console.WriteLine($"建立衍生類別之執行個體耗用記憶體 : {DerivedClassObjectMemoryUsage - BaseClassObjectMemoryUsage} ");
Console.WriteLine($"衍生類別之執行個體 與 基底類別之執行個體 記憶體相差數量 : " +
$"{(DerivedClassObjectMemoryUsage - BaseClassObjectMemoryUsage)- (BaseClassObjectMemoryUsage - EmptyClassObjectMemoryUsage)} ");
Console.WriteLine("Press any key for continuing...");
Console.ReadKey();
#endregion
}
static void Main(string[] args)
{
#region 單純繼承之物件多型行為
ByInheritance.MyDerivedClass fooMyDerivedClassObject = new ByInheritance.MyDerivedClass();
ByInheritance.MyBaseClase fooMyBaseClassObject = fooMyDerivedClassObject as ByInheritance.MyBaseClase;
Console.WriteLine("單純繼承之物件多型行為");
Console.WriteLine($"型別為基底類別的本地變數之執行時期的型別為 : {fooMyBaseClassObject.GetType().Name} ");
Console.WriteLine($"型別為衍生類別的本地變數之執行時期的型別為 : {fooMyDerivedClassObject.GetType().Name} ");
Console.WriteLine($"型別為基底類別的本地變數之 Name 屬性值為 : {fooMyBaseClassObject.Name} ");
Console.WriteLine($"型別為基底類別的本地變數之 Address 屬性值為 : {fooMyBaseClassObject.Address} ");
Console.WriteLine($"型別為衍生類別的本地變數之 Name 屬性值為 : {fooMyDerivedClassObject.Name} ");
Console.WriteLine($"型別為衍生類別的本地變數之 Address 屬性值為 : {fooMyDerivedClassObject.Address} ");
Console.WriteLine("Press any key for continuing...");
Console.ReadKey();
#endregion
#region 繼承與多型覆寫之有使用 virtual / override 使用情況
ByInheritancePolymorphismVirtualOverride.MyDerivedClass fooVirtualOverrideMyDerivedClassObject = new ByInheritancePolymorphismVirtualOverride.MyDerivedClass();
ByInheritancePolymorphismVirtualOverride.MyBaseClase fooVirtualOverrideMyBaseClassObject = fooVirtualOverrideMyDerivedClassObject as ByInheritancePolymorphismVirtualOverride.MyBaseClase;
Console.WriteLine("繼承與多型覆寫之有使用 virtual / override 使用情況");
Console.WriteLine($"型別為基底類別的本地變數之執行時期的型別為 : {fooVirtualOverrideMyBaseClassObject.GetType().Name} ");
Console.WriteLine($"型別為衍生類別的本地變數之執行時期的型別為 : {fooVirtualOverrideMyDerivedClassObject.GetType().Name} ");
Console.WriteLine($"型別為基底類別的本地變數之 Name 屬性值為 : {fooVirtualOverrideMyBaseClassObject.Name} ");
Console.WriteLine($"型別為基底類別的本地變數之 Address 屬性值為 : {fooVirtualOverrideMyBaseClassObject.Address} ");
Console.WriteLine($"型別為衍生類別的本地變數之 Name 屬性值為 : {fooVirtualOverrideMyDerivedClassObject.Name} ");
Console.WriteLine($"型別為衍生類別的本地變數之 Address 屬性值為 : {fooVirtualOverrideMyDerivedClassObject.Address} ");
Console.WriteLine("Press any key for continuing...");
Console.ReadKey();
#endregion
#region 繼承與多型覆寫之有使用 new 使用情況
ByInheritancePolymorphismNew.MyDerivedClass fooNewMyDerivedClassObject = new ByInheritancePolymorphismNew.MyDerivedClass();
ByInheritancePolymorphismNew.MyBaseClase fooNewMyBaseClassObject = fooNewMyDerivedClassObject as ByInheritancePolymorphismNew.MyBaseClase;
Console.WriteLine("繼承與多型覆寫之有使用 new 使用情況");
Console.WriteLine($"型別為基底類別的本地變數之執行時期的型別為 : {fooNewMyBaseClassObject.GetType().Name} ");
Console.WriteLine($"型別為衍生類別的本地變數之執行時期的型別為 : {fooNewMyDerivedClassObject.GetType().Name} ");
Console.WriteLine($"型別為基底類別的本地變數之 Name 屬性值為 : {fooNewMyBaseClassObject.Name} ");
Console.WriteLine($"型別為基底類別的本地變數之 Address 屬性值為 : {fooNewMyBaseClassObject.Address} ");
Console.WriteLine($"型別為衍生類別的本地變數之 Name 屬性值為 : {fooNewMyDerivedClassObject.Name} ");
Console.WriteLine($"型別為衍生類別的本地變數之 Address 屬性值為 : {fooNewMyDerivedClassObject.Address} ");
Console.WriteLine("Press any key for continuing...");
Console.ReadKey();
#endregion
#region 繼承與多型覆寫之有使用 virtual / override / new 使用情況
ByInheritancePolymorphismMixVirtualAndNew.MyDerivedClass fooMixVirtualAndNewMyDerivedClassObject = new ByInheritancePolymorphismMixVirtualAndNew.MyDerivedClass();
ByInheritancePolymorphismMixVirtualAndNew.MyBaseClase fooMixVirtualAndNewMyBaseClassObject = fooMixVirtualAndNewMyDerivedClassObject as ByInheritancePolymorphismMixVirtualAndNew.MyBaseClase;
Console.WriteLine("承與多型覆寫之有使用 virtual / override / new 使用情況");
Console.WriteLine($"型別為基底類別的本地變數之執行時期的型別為 : {fooMixVirtualAndNewMyBaseClassObject.GetType().Name} ");
Console.WriteLine($"型別為衍生類別的本地變數之執行時期的型別為 : {fooMixVirtualAndNewMyDerivedClassObject.GetType().Name} ");
Console.WriteLine($"型別為基底類別的本地變數之 Name 屬性值為 : {fooMixVirtualAndNewMyBaseClassObject.Name} ");
Console.WriteLine($"型別為基底類別的本地變數之 Address 屬性值為 : {fooMixVirtualAndNewMyBaseClassObject.Address} ");
Console.WriteLine($"型別為基底類別的本地變數之 Age 屬性值為 : {fooMixVirtualAndNewMyBaseClassObject.Age} ");
Console.WriteLine($"型別為衍生類別的本地變數之 Name 屬性值為 : {fooMixVirtualAndNewMyDerivedClassObject.Name} ");
Console.WriteLine($"型別為衍生類別的本地變數之 Address 屬性值為 : {fooMixVirtualAndNewMyDerivedClassObject.Address} ");
Console.WriteLine($"型別為衍生類別的本地變數之 Age 屬性值為 : {fooMixVirtualAndNewMyDerivedClassObject.Age} ");
Console.WriteLine("Press any key for continuing...");
Console.ReadKey();
#endregion
}
