c#测试反射性能示例

Activator.CreateInstance和AssemblyCreateInstance性能测试

namespace HelloWorld
{
    class Program
    {
        static void Main(string[] args)
        {
            Stopwatch s = new Stopwatch();
            Assembly a = Assembly.GetExecutingAssembly();

            //foreach (var st in a.GetExportedTypes())
            //{
            //    Console.WriteLine(st.Name);
            //}

            s.Reset();
            s.Start();
            Type t = a.GetType("HelloWorld.Test1");
            Interface1 i2 = (Interface1)(Activator.CreateInstance(t));
            Console.WriteLine((i2.Add(1, 2)));
            s.Stop();
            Console.WriteLine(s.Elapsed);

            s.Reset();
            s.Start();
            Interface1 i = (Interface1)a.CreateInstance("HelloWorld.Test1");
            Console.WriteLine((i.Add(1, 2)));
            s.Stop();
            Console.WriteLine(s.Elapsed);

        }
    }
    public class Test1 : Interface1
    {
        public int Add(int a, int b)
        {
            return a + b;
        }
    }
    public interface Interface1
    {
        int Add(int a, int b);
    }
}
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