C#simultanous控制台输入输出？

Question

我正在编写一个服务器应用程序,我希望它是基于控制台的.我需要用户能够输入不同的命令,但同时有可能在用户写入时将某些内容输出到控制台.这会使缓冲区混乱.这样做有什么干净的方法吗？

谢谢.

Answer 1

我开始编写一个测试程序来展示如何将控制台划分为一个输出区域和一个输入区域，输入区域随着输出区域的扩大而向下移动，输出更多。它还不完美，但您可以将其发展为您正在寻找的答案：

  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;
  }