public static RectangleCollection GetRectangleCollection() => collection ?? (collection = new RectangleCollection());
static void Main(string[] args)
{
Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
//协变
IIndex <Rectangle> rectangles = RectangleCollection.GetRectangleCollection();
IIndex <Shape> shape = rectangles;
for (int t = 0; t < shape.Count; t++)
{
Console.WriteLine(shape[t].ToString());
}
//抗變
IDisplay <Shape> display = new ShapeDisplay();
IDisplay <Rectangle> rectangleDisplay = display;
rectangleDisplay.Show(rectangles[0]);
Console.ReadLine();
Console.WriteLine("以下演示泛型类型的静态变量！！");
MyClass <int> class1 = new MyClass <int>();
MyClass <int> class12 = new MyClass <int>();
Console.WriteLine(class1.Count);
Console.WriteLine(class12.Count);
MyClass <double> class2 = new MyClass <double>();
Console.WriteLine(class2.Count);
Console.WriteLine("以下演示泛型方法 ！！");
var result = Max <int>(10, 20);
Console.WriteLine(result.ToString());
Console.WriteLine("类型继承泛型类型 ！！");
MyClass myClass = new MyClass();
MyClass myClass2 = new MyClass();
Console.WriteLine(myClass.Count);
Console.ReadLine();
var Acountes = new List <Account>()
{
new Account("张三", 10022),
new Account("张三", 10022),
new Account("张三", 10022),
new Account("张三", 10022),
new Account("张三", 10022),
new Account("张三", 10022)
};
decimal amount = Algorithm.AcclumateSample(Acountes);
Console.WriteLine(amount);
decimal amount2 = Algorithm.Acclumate <Account>(Acountes);
Console.WriteLine(amount2);
var deposites = new List <DepositAccount>()
{
new DepositAccount(1000, "sngue.smae")
};
decimal deposits = Algorithm.Acclumate <DepositAccount>(deposites);
Console.WriteLine(deposits);
decimal count = Algorithm.Acclumate <Account, decimal>(Acountes, (item, sum) => sum + item.Balance);
Console.WriteLine(count);
// decimal DepositAccount
MethoedOverLoad methoed = new MethoedOverLoad();
methoed.Foo(33);
methoed.Foo("admin");
methoed.Foo("ddfdasf", "dfdsafds");
methoed.Foo(983, "你朱工");
Console.WriteLine("==========================================");
methoed.Bar("三人行，必有我师也");
methoed.Bar(3343);
Console.ReadLine();
}