public void MyMethod(params int[] numbers)
{
    foreach (int n in numbers)
        Console.WriteLine(n);
}
// 調(diào)用方式：
MyMethod();           // numbers = new int[0]
MyMethod(1);          // numbers = new int[] { 1 }
MyMethod(1, 2, 3);    // numbers = new int[] { 1, 2, 3 }

public static bool ImplementsAllInterfaces(Type targetType, params Type[] interfaceTypes)
{
    if (interfaceTypes == null || interfaceTypes.Length == 0)
        return true; // 沒有要求接口，視為滿足
    var implementedInterfaces = targetType.GetInterfaces();
    foreach (var iface in interfaceTypes)
    {
        if (!implementedInterfaces.Contains(iface))
            return false;
    }
    return true;
}

// 定義接口和類
public interface IRunnable { }
public interface IFlyable { }
public class Bird : IRunnable, IFlyable { }
// 使用
Type birdType = typeof(Bird);
// 方式1：直接傳多個 Type
bool result1 = ImplementsAllInterfaces(birdType, typeof(IRunnable), typeof(IFlyable));
// 方式2：傳數(shù)組（等效）
Type[] required = { typeof(IRunnable), typeof(IFlyable) };
bool result2 = ImplementsAllInterfaces(birdType, required);
// 方式3：不傳（空參數(shù)）
bool result3 = ImplementsAllInterfaces(birdType); // 返回 true

proxyGenerator.CreateClassProxy(
    typeof(MyClass),
    new[] { typeof(IInterceptor) },
    params Type[] additionalInterfacesToProxy // ← 這里常用 params
);

public void RegisterService(Type implementation, params Type[] serviceTypes)
{
    foreach (var service in serviceTypes)
    {
        container.Register(service, implementation);
    }
}
// 調(diào)用
RegisterService(typeof(Logger), typeof(ILogger), typeof(IDisposable));

public void AssertImplements(object obj, params Type[] expectedInterfaces)
{
    Type actualType = obj.GetType();
    foreach (var iface in expectedInterfaces)
    {
        Assert.IsTrue(actualType.GetInterfaces().Contains(iface));
    }
}

MyMethod(null); // 此時 params 數(shù)組為 null！

public void Foo(params string[] args)
{
    if (args == null) 
    {
        // 處理 null 情況
    }
}

Check(typeof(ISerializable), typeof(IDisposable));

ISerializable obj = ...;
Check(obj); // 編譯錯誤！obj 不是 Type 類型

using System;
using System.Linq;
public static class InterfaceChecker
{
    public static bool HasAllInterfaces(Type type, params Type[] requiredInterfaces)
    {
        if (requiredInterfaces == null || requiredInterfaces.Length == 0)
            return true;
        var implemented = type.GetInterfaces();
        return requiredInterfaces.All(implemented.Contains);
    }
}
// 測試
interface IA { }
interface IB { }
class MyClass : IA, IB { }
class Program
{
    static void Main()
    {
        bool ok = InterfaceChecker.HasAllInterfaces(
            typeof(MyClass),
            typeof(IA),
            typeof(IB)
        );
        Console.WriteLine(ok); // True
    }
}