C#泛型功能

public class GenericList<T>
{
    private T[] elements;

    public void Add(T element)
    {
        // 将元素添加到数组中
    }

    public T Get(int index)
    {
        // 从数组中获取元素
    }
}

var intList = new GenericList<int>();
intList.Add(1);
intList.Add(2);
intList.Add(3);

var stringList = new GenericList<string>();
stringList.Add("hello");
stringList.Add("world");

public static void Swap<T>(ref T a, ref T b)
{
    T temp = a;
    a = b;
    b = temp;
}

int a = 1;
int b = 2;
Swap<int>(ref a, ref b);

string c = "hello";
string d = "world";
Swap<string>(ref c, ref d);