如何在用 C++ 编写的控制台应用程序中制作加载动画? [英] How to make a loading animation in Console Application written in C++?

问题描述

我正在用 C++ 编写一个控制台应用程序，我需要使用 ASCII 字符来制作类似loading.gif"的东西.

I am coding a Console Application in c++ and I need to make something like a "loading.gif" just by using ASCII characters.

以下是我应该使用的字符列表:

The following is the list of the characters that I should be using:

1. --
2. \
3. |
4. /
5. --

这些符号将通过循环制作加载动画.

These symbols will make a loading animation by cycling.

然而，当我写输出时，它变成了:

However, when I write the output, it become like:

输出第 1 行: --输出第 2 行: \输出第 3 行: |输出第 4 行:/输出第 5 行: --

Output line 1: -- Output line 2: \ Output line 3: | Output line 4: / Output line 5: --

我需要这样做:

输出第 1 行: [这将一直被替换]

它不应该到第二行.

我怎样才能在 C++ 中做到这一点?有没有替换功能?

How can I do this in C++? Is there any kind of replace function?

推荐答案

您可以使用退格字符 ('\b') 返回并覆盖控制台上的字符.您还需要在每次更改后刷新输出，否则输出可能会保留在缓冲区中而不会出现在控制台上.

You can use the backspace character ('\b') to go back and overwrite characters on the console. You'll also need to flush the output after each change, otherwise the output might stay in a buffer and not appear on the console.

这是一个简单的例子:

#include <iostream>
#include <unistd.h> // for sleep()

int main()
{
    std::cout << '-' << std::flush;
    for (;;) {
        sleep(1);
        std::cout << "\b\\" << std::flush;
        sleep(1);
        std::cout << "\b|" << std::flush;
        sleep(1);
        std::cout << "\b/" << std::flush;
        sleep(1);
        std::cout << "\b-" << std::flush;
    }
}

这篇关于如何在用 C++ 编写的控制台应用程序中制作加载动画?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！