ISubjectFactory/SubjectFactory.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Configuration;
using IDAL;
using ISubjectFactory;
using XML_DAL;
using ORCAL_DAL;
using SQL_DAL;


namespace ISubjectFactory//工厂
{
    public static class SubjectFactory
    {
        private static string[] str = ConfigurationManager.AppSettings["DAL"].Split(',');//截取要的程序集名称和命名空间

        private static string Assembly = str[0];//程序集名称

        private static string Namespace = str[1];//命名空间

        public static IDAL.ISubject GetFactoryInstance()
        {
            return Activator.CreateInstance(Assembly, Namespace + ".SubjectService").Unwrap() as IDAL.ISubject;
        }
    }
}