大家帮我改进下代码！

Question

本帖最后由 asd110yan 于 2012-01-01 12:49:28 编辑

Answer 1

 case 3: if (username == 123)
                    {
                        try
                        {
                            Console.WriteLine("请输入您要取的钱数");
                            double money = double.Parse(Console.ReadLine());
                            if (money > sql[0, 2])
                            {
                                throw new Exception();
                            }
                            double nowmoney = sql[0, 2] - money;
                            Console.WriteLine("好啦，钱已经取走，现在卡里有{0}元", nowmoney);
                            Console.WriteLine("还要继续吗?Y or N");
                            string choose = Console.ReadLine().ToUpper();
                            if (choose == "Y")
                            {
                                Console.Clear();
                                goto start3;
                            }
                            else
                            {
                                Console.WriteLine("不继续就取回卡片");
                                return;
                            }
                        }
                        catch (Exception)
                        {
                            Console.Clear();
                            Console.WriteLine("你卡里都没那么多钱还取那么多，真晕，你看好啊！");
                            goto start3;
                        }
                    }
                    if (username == 789)
                    {
                        try
                        {
                            Console.WriteLine("请输入您要取的钱数");
                            double money = double.Parse(Console.ReadLine());
                            if (money > sql[1, 2])
                            {
                                throw new Exception();
                            }
                            double nowmoney = sql[1, 2] - money;
                            Console.WriteLine("好啦，钱已经取走，现在卡里有{0}元", nowmoney);
                            Console.WriteLine("还要继续吗?Y or N");
                            string choose = Console.ReadLine().ToUpper();
                            if (choose == "Y")
                            {
                                Console.Clear();
                                goto start3;
                            }
                            else
                            {
                                Console.WriteLine("不继续就取回卡片");
                                return;
                            }
                        }
                        catch (Exception)
                        {
                            Console.Clear();
                            Console.WriteLine("你卡里都没那么多钱还取那么多，真晕，你看好啊！");
                            goto start3;
                        }
                    }
                    if (username == 159)
                    {
                        try
                        {
                            Console.WriteLine("请输入您要取的钱数");
                            double money = double.Parse(Console.ReadLine());
                            if (money > sql[2, 2])
                            {
                                throw new Exception();
                            }
                            double nowmoney = sql[2, 2] - money;
                            Console.WriteLine("好啦，钱已经取走，现在卡里有{0}元", nowmoney);
                            Console.WriteLine("还要继续吗?Y or N");
                            string choose = Console.ReadLine().ToUpper();
                            if (choose == "Y")
                            {
                                Console.Clear();
                                goto start3;
                            }
                            else
                            {
                                Console.WriteLine("不继续就取回卡片");
                                return;
                            }
                        }
                        catch (Exception)
                        {
                            Console.Clear();
                            Console.WriteLine("你卡里都没那么多钱还取那么多，真晕，你看好啊！");
                            goto start3;
                        }
                    }
                    break;
                case 4: Console.WriteLine("请取回卡片");
                    return;
                default: Console.Clear();
                    Console.WriteLine("输入有错误,请重新输入");
                    goto start3;
                    //break;
            }            
        }

Answer 2

程序没看，光看了一下你的问题，我想你可以用arraylist来处理你的数组会好点。因为在银行的帐号里，每次的存取都是一条记录，在每一条记录里都可以计算出余额，那么最后一条记录就是你当前的余额。所以用arraylist来操作记录就不会出现上面你所说的问题。希望这个回答对你有用。