/* FTPFactory.cs use the following line to compile :csc /target:library /out:FTPLib.dll /r:System.DLL FTPFactory.cs */using System;using System.Threading;using System.Net;using System.IO;using System.Text;using System.Net.Sockets;using System.Configuration;namespace Com.Cmb.ShortTerm.VRDNWeb.Comm...

异常类名称 简单描述 MemberAccessException 访问错误：类型成员不能被访问 ArgumentException 参数错误：方法的参数无效 ArgumentNullException 参数为空：给方法传递一个不可接受的空参数 ArithmeticException ...