/// <summary>
        /// 得到服务集合
        /// </summary>
        /// <param name="assblemyArray">应用程序集(如果为null则获取当前应用的程序集)</param>
        /// <typeparam name="TService"></typeparam>
        /// <returns>得到继承serviceType的实现类</returns>
        public IEnumerable <TService> GetServices <TService>(Assembly[] assblemyArray = null) where TService : class
        {
            var types = (assblemyArray ?? AssemblyCommon.GetAssemblies()).SelectMany(x =>
                                                                                     x.GetTypes().Where(y => y.GetInterfaces().Contains(typeof(TService)))).ToList();

            foreach (var type in types)
            {
                yield return(Activator.CreateInstance(type) as TService);
            }
        }
 /// <summary>
 ///
 /// </summary>
 /// <param name="assblemyArray"></param>
 public ServiceProvider(Assembly[] assblemyArray = null)
 {
     _assblemyArray = assblemyArray ?? AssemblyCommon.GetAssemblies();
 }