using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.IO;using System.Runtime.Serialization.Formatters.Binary;namespace ConsoleApplication3{ [Serializable] //声明为可序列化的 因为要写入文件中 public class PayOverflowException : ApplicationException//由用户程序引发，用于派生自定义的异常类型 { // Read More
