银行系统转换报表

Question

嗨，我是新手，我正在尝试找出一种方法，让客户可以从 DisplayMenu 输入他们选择的选项，然后将他们带到另一个屏幕，如 DisplayBalance()，这是目前正在运行的。但随后我希望他们按下回车键，然后 return 他们回到 DisplayMenu() 并能够输入另一个选项将他们带到另一个屏幕，但目前正在发生的是控制台退出。有谁知道如何解决这个问题？

// 显示菜单

private static void DisplayMenu()
    {
        Console.WriteLine("Welcome to your online bank account\nPlease choose from the options below: ");
        Console.WriteLine("");
        Console.WriteLine("1.View Client Info");
        Console.WriteLine("");
        Console.WriteLine("2. View Account Balance:");
        Console.WriteLine("     2A.Everyday\n     2B.Investment\n     2C.Omni");
        Console.WriteLine("");
        Console.WriteLine("3.Deposit Funds:\n     3A.Everyday\n     3B.Investment\n     3C.Omni");
        Console.WriteLine("");
        Console.WriteLine("4.Withdraw Funds:\n     4A.Everyday\n     4B.Investment\n     4C.Omni");
        Console.WriteLine("");
        Console.WriteLine("5.View Everyday Banking Details");
        Console.WriteLine("6.View Investment Banking Details");
        Console.WriteLine("7.View Omni Banking details");
        Console.WriteLine("");
        Console.WriteLine("8.Exit");
    }

// 主要

   private static void Main(string[] args)
    {
       

        Client client = new Client("Tayla", "Brown", "027493922", "55 Grey Rd"); // Our one client

        Everyday everyday = new Everyday(client, Account.GenerateAccountNumber(), 2000m);
        Investment investment = new Investment(client, 500m);
        Omni omni = new Omni(client, 1000m);

      

            DisplayMenu();

            string userchoice = Console.ReadLine();//user input from menu options

            switch (userchoice.ToUpper())
            {
                case "1": // Display Client Info
                Console.Clear();
                Console.WriteLine(client.ClientInfo);
                    break;

                case "2A": // Display Everday Account Balance
                Console.Clear();
                DisplayBalance(everyday);
                    break;

                case "2B": // Display Investment Account Balance
                    Console.Clear();
                    DisplayBalance(investment);
                    break;

                case "2C": // Display Omni Account Balance
                    Console.Clear();
                    DisplayBalance(omni);
                    break;

                case "3A": // Everyday Account Deposit
                       
                    DepositAmount(everyday);
                    break;

                case "3B": // Investment Account Deposit

                    DepositAmount(investment);
                    break;

                case "3C": // Omni Account Deposit

                    DepositAmount(omni);
                    break;

                case "4A": // Everyday account Withdrawal
                          
                    WithdrawAmount(everyday);
                    break;

                case "4B": // Investment Account Withdrawal

                    WithdrawAmount(investment);
                    break;

                case "4C": // Omni Account Withdrawal

                    WithdrawAmount(omni);
                    break;

                case "5": // Everyday Details

                    DisplayDetails(everyday);
                    break;

                case "6": // Investment Details

                    DisplayDetails(investment);
                    break;

                case "7": // Omni Details

                    DisplayDetails(omni);
                    break;

                case "8": // Exit Banking

                    Console.WriteLine("You have chosen to exit the online banking. Thanks and come again!");
                   
                    break;
            default: // catch all, breaks the loop
                     //Console.Clear()
                break;
        }
        
    }

// 显示余额

   private static void DisplayBalance(Account account)
    {
        Console.WriteLine($"{account.AccountType} Balance: {account.Balance:$#,##0.00}");
        Console.ReadLine();
        DisplayMenu();
    }

Answer 1

string userchoice = Console.ReadLine(); 及其下面的所有选项都需要包含在无限循环中，即 while (true) { ... } 。这使得一旦 switch 语句中断，系统将提示用户再次输入并继续循环。如果您不想使用 ctrl-C 终止，则必须将终止提示移到切换之前。例如： while (true) { string userchoice = Console.ReadLine(); if (userchoice == 8) { Console.WriteLine("You have chosen to exit the online banking. Thanks"); break; } else { switch ... 编辑：无限循环代码

while (true) {
      string userchoice = Console.ReadLine();//user input from menu options

            switch (userchoice.ToUpper())
            {
                case "1": // Display Client Info
                Console.Clear();
                Console.WriteLine(client.ClientInfo);
                    break;

                case "2A": // Display Everday Account Balance
                Console.Clear();
                DisplayBalance(everyday);
                    break;

                case "2B": // Display Investment Account Balance
                    Console.Clear();
                    DisplayBalance(investment);
                    break;

                case "2C": // Display Omni Account Balance
                    Console.Clear();
                    DisplayBalance(omni);
                    break;

                case "3A": // Everyday Account Deposit
                       
                    DepositAmount(everyday);
                    break;

                case "3B": // Investment Account Deposit

                    DepositAmount(investment);
                    break;

                case "3C": // Omni Account Deposit

                    DepositAmount(omni);
                    break;

                case "4A": // Everyday account Withdrawal
                          
                    WithdrawAmount(everyday);
                    break;

                case "4B": // Investment Account Withdrawal

                    WithdrawAmount(investment);
                    break;

                case "4C": // Omni Account Withdrawal

                    WithdrawAmount(omni);
                    break;

                case "5": // Everyday Details

                    DisplayDetails(everyday);
                    break;

                case "6": // Investment Details

                    DisplayDetails(investment);
                    break;

                case "7": // Omni Details

                    DisplayDetails(omni);
                    break;

                case "8": // Exit Banking

                    Console.WriteLine("You have chosen to exit the online banking. Thanks and come again!");
                   
                    break;
            default: // catch all, breaks the loop
                     //Console.Clear()
                break;
        }
    }

银行系统转换报表

Switch Statement for Banking System

c#

console

readline

switch-statement