在c#控制台应用程序中，如何清除以前显示的文本，但在同一位置显示文本? [英] In c# console app, how can I display text at the same position while the previously displayed texts are cleared?

问题描述

在C#控制台应用程序中，我想在同一位置显示一些文本.虽然可以使用Console.SetCursorPosition()方法设置位置，但我不知道如何清除该位置之后的先前显示的文本(在该区域内具有给定宽度和高度的区域中的所有文本或部分文本)位置).你能帮我吗?

非常感谢.

In a C# Console application, I want to display some texts at the same position. While I can use the Console.SetCursorPosition() method to set the position, I have no idea that how can I clear the previously displayed text after that position(all text, or partial text within an area with a given width and height after that position). Can you help me？

Thanks a lot.

推荐答案

可以通过用空格字符覆盖来擦除现有文本.

要清除一行，顺序为

Existing text can be erased by overwriting with space characters.

To clear one line the sequence would be

SetCursor ROW, COLUMN
Write space * LINEWIDTH

并且可以通过增加循环内的ROW值轻松扩展为清除矩形区域.

如果还可以通过写退格字符将光标向左移动一个位置.序列退格键退格键将删除光标左侧的字符.

以下轮询循环演示了一种重复写入同一位置的简单方法.

and that can easily be extended to clear a rectangular area by incrementing the ROW value within a loop.

If it also possible to move the cursor one place to the left by writing a backspace character. The sequence backspace space backspace will erase the character to the left of the cursor.

The following polling loop demonstrates a simple way to write repeatedly to the the same location.

private void ShowProgress() {
  String percent = "";
  for(Int32 i = 0; i <= 100, i++) {
    percent = String.Format(" Progress: {0}%", i);
    Console.Write(percent);
    Thread.Sleep(500);
    for (Int32 j = 0; i < percent.Length; i++) {
      Console.Write("\b \b"); // backspace - space - backspace
    }
  }
  Console.WriteLine();
}

艾伦.

Alan.

我猜Console.Clear不是您要找的东西吗?

I guess Console.Clear is not what you are looking for?

要标记Nischalke:


是的.

To Mark Nischalke:


Yes.

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