思考一种好的架构（十二）

  /// <summary>
    /// 扫描执行接口
    /// 扫描后将会执行Execute函数
    /// </summary>
    public abstract class BaseStartExecute
    {
        public BaseStartExecute() { 
        
        }

        /// <summary>
        /// 执行函数
        /// </summary>
        public abstract void Execute();
    }

 public class Scan
    {

        public static void QueryAssemblies<T>() where T : BaseStartExecute
        {
            List<T> StartExecutes = new List<T>();
            var referenceScanDoMainName = typeof(Scan).Assembly.FullName;
            foreach (var item in System.AppDomain.CurrentDomain.GetAssemblies())
            {
                if (item.GetReferencedAssemblies().Where(x => x.FullName.Equals(referenceScanDoMainName)).Count() > 0)
                {
                    StartExecutes.AddRange(CreateAllInstancesOf<T>(item));
                }
            }
            foreach (var item in StartExecutes)
            {
                item.Execute();
            }
        }
        public static void QueryAssemblies()
        {
            List<BaseStartExecute> StartExecutes = new List<BaseStartExecute>();
            var referenceScanDoMainName = typeof(Scan).Assembly.FullName;
            foreach (var item in System.AppDomain.CurrentDomain.GetAssemblies())
            {
                if (item.GetReferencedAssemblies().Where(x => x.FullName.Equals(referenceScanDoMainName)).Count() > 0)
                {
                    StartExecutes.AddRange(CreateAllInstancesOf<BaseStartExecute>(item));
                }
            }
            foreach (var item in StartExecutes)
            {
                item.Execute();
            }
        }
        public static IEnumerable<T> CreateAllInstancesOf<T>(Assembly assembly)
        {
            return assembly.GetTypes() //获取当前类库下所有类型
                .Where(t => typeof(T).IsAssignableFrom(t)) //获取间接或直接继承t的所有类型
                .Where(t => !t.IsAbstract && t.IsClass) //获取非抽象类 排除接口继承
                .Select(t => (T)Activator.CreateInstance(t)); //创造实例，并返回结果（项目需求，可删除）
        }
    }