C＃点大控制台输入和输出？ [英] C# simultanous console input and output?

问题描述

我写一个的服务器应用程序，我想基于控制台的那样。我需要用户能够输入不同的命令，但在同一时间有一种可能性，即一些将被输出到控制台当用户写入。这打乱了缓冲起来。有没有这样做？

I am writing a server app and I want it to be console based. I need the user to be able to input different commands, but at the same time there is a possibility that something will be output to the console while the user is writing. This messes the buffer up. Is there any clean way of doing this?

感谢。

推荐答案

我开始测试工作方案，以显示你怎么可以划分到控制台输出区域和输入区域，其中输入区域向下移动的输出区域与更多的产出扩张。它并不完美，但你或许可以把它发展成为你正在寻找的答案：

I started work on a test program to show how you could divide the console into an output area and an input area, where the input area is moved down as the output area expands with more output. It's not perfect yet, but you may be able to develop it into the answer you're looking for:

  static int outCol, outRow, outHeight = 10;

  static void Main(string[] args)
  {
     bool quit = false;
     System.DateTime dt = DateTime.Now;
     do
     {
        if (Console.KeyAvailable)
        {
           if (Console.ReadKey(false).Key == ConsoleKey.Escape)
              quit = true;
        }
        System.Threading.Thread.Sleep(0);
        if (DateTime.Now.Subtract(dt).TotalSeconds > .1)
        {
           dt = DateTime.Now;
           WriteOut(dt.ToString(" ss.ff"), false);
        }            
     } while (!quit);
  }

  static void WriteOut(string msg, bool appendNewLine)
  {
     int inCol, inRow;
     inCol = Console.CursorLeft;
     inRow = Console.CursorTop;

     int outLines = getMsgRowCount(outCol, msg) + (appendNewLine?1:0);
     int outBottom = outRow + outLines;
     if (outBottom > outHeight)
        outBottom = outHeight;
     if (inRow <= outBottom)
     {
        int scrollCount = outBottom - inRow + 1;
        Console.MoveBufferArea(0, inRow, Console.BufferWidth, 1, 0, inRow + scrollCount);
        inRow += scrollCount;
     }
     if (outRow + outLines > outHeight)
     {
        int scrollCount = outRow + outLines - outHeight;
        Console.MoveBufferArea(0, scrollCount, Console.BufferWidth, outHeight - scrollCount, 0, 0);
        outRow -= scrollCount;
        Console.SetCursorPosition(outCol, outRow);
     }
     Console.SetCursorPosition(outCol, outRow);
     if (appendNewLine)
        Console.WriteLine(msg);
     else
        Console.Write(msg);
     outCol = Console.CursorLeft;
     outRow = Console.CursorTop;
     Console.SetCursorPosition(inCol, inRow);
  }

  static int getMsgRowCount(int startCol, string msg)
  {
     string[] lines = msg.Split('\n');
     int result = 0;
     foreach (string line in lines)
     {
        result += (startCol + line.Length) / Console.BufferWidth;
        startCol = 0;
     }
     return result + lines.Length - 1;
  }

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