Question

我正在制作一个基本的控制台应用程序（不幸的是，这是必须的），该应用程序显示了时间以及一个非常基本的界面，用户可以在其中输入选项。完成后，UI会更新以显示相关的新数据，并允许进一步的输入等。始终在顶部显示带有秒的实时时钟。

我基本上要做的是每秒重新绘制整个UI，并尝试听用户输入以指导下次如何绘制UI。重绘UI时如何管理用户输入？有更好的方法吗？

这是整个程序（非常缩减版本）：

using System;
using System.Diagnostics;
using System.Timers;

namespace TimerTest
{
    class Program
    {
        static bool useStartUI = false;
        static string currentInput = "";
        static Timer aTimer = new System.Timers.Timer();
        static void Main(string[] args)
        {
            aTimer.Elapsed += new ElapsedEventHandler(DrawUI);
            aTimer.Interval = 1000;
            aTimer.Enabled = true;
            Console.ReadLine();
            currentInput = Console.ReadLine();
        }
        static void DrawUI(object source, ElapsedEventArgs e)
        {
            Debug.WriteLine("currentInput = " + currentInput);
            if (currentInput == "A")
            {
                useStartUI = true;
            } else
            {
                useStartUI = false;
            }
            if (!useStartUI)
            {
                DisplayStartUI();
            }
            else
            {
                DisplayCurrentUI();
            }
        }
        private static void DisplayStartUI()
        {
            Console.Clear();
            Console.WriteLine("DisplayStartUI - " +     DateTime.Now.ToString("HH:mm:ss tt"));
            Console.WriteLine("Press 'B' to switch to CurrentUI");
            Console.ReadLine();
            currentInput = Console.ReadLine();
        }
        private static void DisplayCurrentUI()
        {
            Console.Clear();
            Console.WriteLine("DisplayCurrentUI - " +     DateTime.Now.ToString("HH:mm:ss tt"));
            Console.WriteLine("Press 'A' to switch to StartUI");
            Console.ReadLine();
            currentInput = Console.ReadLine();
        }
    }
}

此刻我在定时器启动后立即拥有Console.ReadLine();，如果没有激活，则应用程序立即打开和关闭。其他两个Console.ReadLine();被完全忽略，但正是在这些时候，我希望记录用户输入。

Answer 1

似乎我在想这个问题，@ elgonzo为我指明了正确的方向。现在，我只在一行上显示计时器，并在需要时清除其他行。我有一个基本的工作示例，将把我的主程序扩展到其中。它似乎完全符合我的要求（显然缺少验证和功能），请对此进行评论，如果可以在以下方面进行改进：

using System;
using System.Diagnostics;
using System.Timers;

namespace TimerTest
{
    class Program
    {
        static bool appOpen = true;
        static bool useStartUI = false;
        static string currentInput = "";
        static Timer aTimer = new System.Timers.Timer();
        static void Main(string[] args)
        {
            Console.WriteLine("Main - " + DateTime.Now.ToString("HH:mm:ss tt"));
            aTimer.Elapsed += new ElapsedEventHandler(DrawClock);
            aTimer.Interval = 1000;
            aTimer.Enabled = true;

            while (appOpen) // to keep the application running and give a possible exit - will expand this
            {
                DrawUI();
            }
        }
        #region UI region
        static void DrawClock(object source, ElapsedEventArgs e)
        {
            Console.SetCursorPosition(0, 0);
            Console.WriteLine("DrawClock - " + DateTime.Now.ToString("HH:mm:ss     tt"));
            Console.SetCursorPosition(0, 7);
        }
        static void DrawUI()
        {
            Debug.WriteLine("currentInput = " + currentInput);
            if (currentInput == "A" || currentInput == "a")
            {
                useStartUI = true;
            }
            else if (currentInput == "B" || currentInput == "b")
            {
                useStartUI = false;
            }
            if (useStartUI)
            {
                DisplayStartUI();
            }
            else
            {
                DisplayCurrentUI();
            }
        }
        private static void DisplayStartUI()
        {
            CleanUI();
            Console.WriteLine("DisplayStartUI");
            Console.WriteLine("Press 'B' to switch to CurrentUI");

            ConsoleKeyInfo keyPressed = Console.ReadKey();
            Console.SetCursorPosition(0, 7);
            Console.WriteLine("You pressed {0}", keyPressed.KeyChar);
            currentInput = keyPressed.KeyChar.ToString();
            if (keyPressed.KeyChar.ToString() == "b")
            {
                DrawUI();
            }
        }
        private static void DisplayCurrentUI()
        {
            CleanUI();
            Console.WriteLine("DisplayCurrentUI");
            Console.WriteLine("Press 'A' to switch to StartUI");
            ConsoleKeyInfo keyPressed = Console.ReadKey();
            Console.SetCursorPosition(0, 7);
            Console.WriteLine("You pressed {0}", keyPressed.KeyChar);
            currentInput = keyPressed.KeyChar.ToString();
            if (keyPressed.KeyChar.ToString() == "a")
            {
                DrawUI();
            }
        }
        #endregion
        #region functional methods
        public static void CleanUI()
        {
            Console.SetCursorPosition(0, 5);
            ClearCurrentConsoleLine();
            Console.SetCursorPosition(0, 6);
            ClearCurrentConsoleLine();
            Console.SetCursorPosition(0, 7);
            ClearCurrentConsoleLine();
            Console.SetCursorPosition(0, 5);
        }
        public static void ClearCurrentConsoleLine()
        {
            int currentLineCursor = Console.CursorTop;
            Console.SetCursorPosition(0, Console.CursorTop);
            Console.Write(new string(' ', Console.WindowWidth));
            Console.SetCursorPosition(0, currentLineCursor);
        }
        #endregion
    }
}

具有计时器的C＃控制台基本UI

1 个答案: