After printing few lines on console window, how to get bach to the first line to print new data

问题

After printing some data(a, b, c)

on console screen, how to get back to the first line and print x, y, z like this

a x

b y

c z

回答1:

You will have to use explicit cursor positioning for this to work on the console, it could be something like this:

public class SomeCharPos{
   private char ch;
   private int row, col;
   public SomeCharPos(char ch, int row, int col){
      this.ch = ch;
      this.row = row;
      this.col = col;
   }
   public char SomeChar{
      get{ return this.ch; }
   }
   public int Row{
      get{ return this.row; }
   }
   public int Col{
      get{ return this.col; }
   }
}

public class DemoIt{
   public Dictionary thisDict = new Dictionary();
   public DemoIt(){
       thisDict.Add('a', new SomeCharPos('a', 1, 1));
       thisDict.Add('b', new SomeCharPos('a', 2, 1));
       thisDict.Add('c', new SomeCharPos('a', 3, 1));
          ....
       thisDict.Add('x', new SomeCharPos('x', 1, 3));
       thisDict.Add('y', new SomeCharPos('x', 2, 3));
       thisDict.Add('z', new SomeCharPos('x', 3, 3));
   }
   public void DrawIt(){
       foreach (SomeCharPos pos in thisDict.Values){
          Console.SetCursorPosition(pos.Col, pos.Row);
          Console.Write(pos.SomeChar);
       }
   }
}

Hope this helps, Best regards, Tom.

回答2:

static void Main(string[] args)
{
    Random rand = new Random();
    int maxShoots = 100;

    Console.Clear();
    for (int loop = 0; loop < maxShoots; loop++)
    {
        Console.CursorLeft = rand.Next(Console.WindowWidth);
        Console.CursorTop = rand.Next(Console.WindowHeight);
        Console.Write("x");

        Console.CursorLeft = 0;
        Console.CursorTop = 0;
        Console.Write("Iteration " + loop);

        Thread.Sleep(rand.Next(100));
    }

    Console.CursorLeft = 0;
    Console.CursorTop = Console.WindowHeight-1;
    Console.ReadKey();
}

回答3:

You can control the cursor through Console.CursorTop, Console.CursorLeft properties.

来源：https://stackoverflow.com/questions/2325832/after-printing-few-lines-on-console-window-how-to-get-bach-to-the-first-line-to

标签

console-application