c#

主程序代码

删除dll依旧可以执行

https://files.cnblogs.com/files/NanShengBlogs/sample.zip

 static void Main(string[] args)
        {
            //PrincipalContext ctx = new PrincipalContext(ContextType.Domain, "YOURDOMAIN");
            string dir= Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);

            AppDomain.CurrentDomain.AssemblyResolve += CurrentDomain_AssemblyResolve;

            Assembly ass = Assembly.Load(File.ReadAllBytes(Path.Combine(dir,"ClassLibrary2.dll")));

            List<Assembly> assDepe = new List<Assembly>();

            Type t = ass.GetType("ClassLibrary2.Class");

            var obj=Activator.CreateInstance(t);
            
            var refereces = ass.GetReferencedAssemblies();

            foreach (AssemblyName item in refereces)
            {
                if (AppDomain.CurrentDomain.GetAssemblies().Count(c => c.FullName== item.FullName)==0)
                {
                    assDepe.Add(Assembly.Load(File.ReadAllBytes(Path.Combine(dir,item.Name + ".dll"))));
                }
            }
            var ms = t.GetMethod("MyFunc").Invoke(obj, new object[] { 20, 30 });
            Console.WriteLine(ms);
            Console.ReadLine();
        }

        private static Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args)
        {
           return AppDomain.CurrentDomain.GetAssemblies().FirstOrDefault(a => a.GetName().FullName.Split(',')[0] == args.Name.Split(',')[0]);
        }
    }

"ClassLibrary2"项目

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using ClassLibrary1;

namespace ClassLibrary2
{
    public class Class
    {
        public double MyFunc(double a, double b)
        {
            return ClassLibrary1.mycls.MyAdd(a, b);
        }
    }
}

"ClassLibrary1"项目

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ClassLibrary1
{
    public static class mycls
    {
        public static double MyAdd(double a,double b)
        {
            return a + 2*b;

        }
        public static double MyMinus(double a, double b)
        {
            return a -b+5;

        }
    }
}