typeof c#在泛型中的应用

在C#中，typeof关键字用于获取一个类型的类型信息。在泛型中，typeof可以用于获取泛型参数的类型信息，从而在编译时进行类型检查和类型转换。

下面是一个使用typeof在泛型中的应用示例：

public class GenericClass
{
    private readonly T _value;

    public GenericClass(T value)
    {
        _value = https://www.yisu.com/ask/value;"hljs">public T GetValue()
    {
        return _value;
    }

    public void SetValue(T value)
    {
        _value = https://www.yisu.com/ask/value;"hljs">public static void PrintType(U item)
    {
        Console.WriteLine($"The type of U is: {typeof(U)}");
    }
}

class Program
{
    static void Main(string[] args)
    {
        GenericClass intInstance = new GenericClass(42);
        GenericClass stringInstance = new GenericClass("Hello, World!");

        Console.WriteLine($"The type of T in GenericClass is: {typeof(GenericClass).GetGenericTypeDefinition()}");
        Console.WriteLine($"The type of T in GenericClass is: {typeof(GenericClass).GetGenericTypeDefinition()}");

        GenericClass.PrintType(42); // The type of U is: System.Int32
        GenericClass.PrintType("Hello, World!"); // The type of U is: System.String
    }
}