blocks|key|1265993|text|是的，据我所知，我们不能在Windows上清除它。如果有一种方法可以输出到IO设备以清除Windows上的屏幕，我想知道这个功能并将其添加到Windows中。:)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1265994|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Yes, we can't clear it on Windows as far as I know. If there is one escape that we can output to the IO device to clear screens on Windows, I would love to know and add this functionality to Windows too. :)

blocks|key|240025|text|您最好的选择(如果这是真正的问题，而不是烦恼)是使用支持ANSI逃逸序列的替代Windows+shell。有关为什么不能在Windows中简单地使用ANSI序列，请参见这个S_O问题。一个支持ANSI的命令shell替代方案是ConEmu。在您的计算机上配置ConEmu是留给读者的练习。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|240026|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/16755142/how-to-make-win32-console-recognize-ansi-vt100-escape-sequences|1|http://conemu.github.io/^0|2C|7|0|35|6|1|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]|$A|R|B|S|1|T]]|C|$]]|$1|D|3|-4|5|6|7|U|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|M]]]]

Your best option (if this is a real problem for you rather than an annoyance) is to use an alternate Windows shell that supports ANSI Escape Sequences. See <a href="https://stackoverflow.com/questions/16755142/how-to-make-win32-console-recognize-ansi-vt100-escape-sequences">this S O question</a> for why you can't simply use ANSI Escape sequences in a Windows Cmd Shell. One command shell alternative that does support ANSI is <a href="http://conemu.github.io/" rel="nofollow noreferrer">ConEmu</a>. Configuring ConEmu on your machine is left as an exercise for the reader.

blocks|key|1266055|text|您可以在iex上直接使用ANSI代码和支持它们的控制台(比如ConEmu或Windows10控制台)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1266056|这将清除iex中的屏幕。|1266057|iex>+IO.write+"\e[H\e[J";+IEx.dont_display_result|code-block|syntax|javascript|1266058|解释：|1266059|没有换行符的IO.write输出到控制台|unordered-list-item|1266060|\e[是ANSI+CSI码的前缀。|1266061|H是CSI杯-游标位置代码，没有参数，默认情况下将光标移到第1行第1列。|1266062|J是没有参数的CSI编辑-擦除显示代码，默认情况下从当前光标位置清除屏幕。|1266063|IEx.dont_display_result防止在清除屏幕后显示IO.write的:ok结果。|1266064|您还可以使用IO.ANSI而不是原始转义代码清除屏幕：|1266065|iex>+IO.write+[IO.ANSI.home,+IO.ANSI.clear];+IEx.dont_display_result|1266066|这基本上就是clear/1是实施的样子。|1266067|entityMap|0|LINK|mutability|MUTABLE|url|http://elixir-lang.org/docs/stable/elixir/IO.html#write/2|1|https://en.wikipedia.org/wiki/ANSI_escape_code#CSI|2|https://github.com/elixir-lang/elixir/blob/master/lib/iex/lib/iex/helpers.ex#L154^0|4|3|0|4|3|0|0|0|6|8|6|8|0|0|0|3|9|4|1|0|0|1|0|0|1|0|0|N|X|8|16|3|0|6|7|0|0|1W|0|6|7|E|2|2|0^^$0|@$1|2|3|4|5|6|7|1H|8|@$9|1I|A|1J|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1K|8|@$9|1L|A|1M|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|1N|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|1O|8|@]|D|@]|E|$]]|$1|O|3|P|5|Q|7|1P|8|@$9|1Q|A|1R|B|C]]|D|@$9|1S|A|1T|1|1U]]|E|$]]|$1|R|3|S|5|Q|7|1V|8|@$9|1W|A|1X|B|C]]|D|@$9|1Y|A|1Z|1|20]]|E|$]]|$1|T|3|U|5|Q|7|21|8|@$9|22|A|23|B|C]]|D|@]|E|$]]|$1|V|3|W|5|Q|7|24|8|@$9|25|A|26|B|C]]|D|@]|E|$]]|$1|X|3|Y|5|Q|7|27|8|@$9|28|A|29|B|C]|$9|2A|A|2B|B|C]|$9|2C|A|2D|B|C]]|D|@]|E|$]]|$1|Z|3|10|5|6|7|2E|8|@$9|2F|A|2G|B|C]]|D|@]|E|$]]|$1|11|3|12|5|6|7|2H|8|@$9|2I|A|2J|B|C]]|D|@]|E|$]]|$1|13|3|14|5|6|7|2K|8|@$9|2L|A|2M|B|C]]|D|@$9|2N|A|2O|1|2P]]|E|$]]|$1|15|3|-4|5|6|7|2Q|8|@]|D|@]|E|$]]]|16|$17|$5|18|19|1A|E|$1B|1C]]|1D|$5|18|19|1A|E|$1B|1E]]|1F|$5|18|19|1A|E|$1B|1G]]]]

You can use ANSI codes directly in <code>iex</code> on Windows with consoles that support them (like ConEmu or Windows 10 console.)

This will clear the screen in <code>iex</code>:

<pre><code>iex&gt; IO.write "\e[H\e[J"; IEx.dont_display_result
</code></pre>

Explanation:

<ul>
<li><a href="http://elixir-lang.org/docs/stable/elixir/IO.html#write/2" rel="noreferrer"><code>IO.write</code></a> outputs to the console without a newline</li>
<li><code>\e[</code> is the prefix for ANSI <a href="https://en.wikipedia.org/wiki/ANSI_escape_code#CSI" rel="noreferrer">CSI codes</a></li>
<li><code>H</code> is the CSI CUP – Cursor Position code with no arguments, by default moves cursor to row 1, column 1</li>
<li><code>J</code> is the CSI ED – Erase Display code with no arguments, by default clears the screen from the current cursor position</li>
<li><code>IEx.dont_display_result</code> prevents the <code>:ok</code> result of <code>IO.write</code> from displaying after the screen is cleared</li>
</ul>

You can also clear the screen using <code>IO.ANSI</code> rather than raw escape codes:

<code>iex&gt; IO.write [IO.ANSI.home, IO.ANSI.clear]; IEx.dont_display_result</code>

This is basically how <code>clear/1</code> is <a href="https://github.com/elixir-lang/elixir/blob/master/lib/iex/lib/iex/helpers.ex#L154" rel="noreferrer">implemented</a>.

blocks|key|1266100|text|我发现这是可能的，因为Windows+10中的本机终端支持ANSI颜色和转义序列。唯一的办法是在iex+shell中启用它。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1266101|根据https://github.com/elixir-lang/elixir/blob/master/lib/elixir/lib/io/ansi.ex#L41，这个选项是可配置的。作为一种快速解决方案，只需输入您的iex会话，代码如下：|1266102|Application.put_env(:elixir,+:ansi_enabled,+true)|1266103|为了使其永久化，您可以在iex文件(https://hexdocs.pm/iex/IEx.html#module-configuring-the-shell)中配置~/.iex.exs+shell。只需粘贴到文件中：|1266104|IEx.configure+[colors:+[enabled:+true]]|1266105|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/elixir-lang/elixir/blob/master/lib/elixir/lib/io/ansi.ex#L41|1|https://hexdocs.pm/iex/IEx.html#module-configuring-the-shell^0|1C|3|0|31|3|2|27|0|0|0|1D|0|C|3|2A|A|I|1O|1|0|0|13|0^^$0|@$1|2|3|4|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@$9|13|A|14|1|15]]|E|$]]|$1|H|3|I|5|6|7|16|8|@$9|17|A|18|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|19|8|@$9|1A|A|1B|B|C]|$9|1C|A|1D|B|C]]|D|@$9|1E|A|1F|1|1G]]|E|$]]|$1|L|3|M|5|6|7|1H|8|@$9|1I|A|1J|B|C]]|D|@]|E|$]]|$1|N|3|-4|5|6|7|1K|8|@]|D|@]|E|$]]]|O|$P|$5|Q|R|S|E|$T|U]]|V|$5|Q|R|S|E|$T|W]]]]

I've discovered it's possible, because native terminal in Windows 10 supports ANSI colors and escape sequences. The only thing is to enabled this in <code>iex</code> shell.

According to <a href="https://github.com/elixir-lang/elixir/blob/master/lib/elixir/lib/io/ansi.ex#L41" rel="noreferrer">https://github.com/elixir-lang/elixir/blob/master/lib/elixir/lib/io/ansi.ex#L41</a> this option is configurable. As a quick solution just type in your <code>iex</code> session following code:

<code>Application.put_env(:elixir, :ansi_enabled, true)</code>

In order to make it permanent, you can configure <code>iex</code> shell in <code>~/.iex.exs</code> file (<a href="https://hexdocs.pm/iex/IEx.html#module-configuring-the-shell" rel="noreferrer">https://hexdocs.pm/iex/IEx.html#module-configuring-the-shell</a>). Just paste following into the file:

<code>IEx.configure [colors: [enabled: true]]</code>

blocks|key|105097|text|将以下内容添加到主目录中的~/.iex.exs中--如果该文件不存在，则创建它并添加以下内容。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|105098|Application.put_env(:elixir,+:ansi_enabled,+true)|code-block|syntax|javascript|105099|编辑:请注意，您需要一个支持这一术语，ConEmu，Cmder等。|105100|entityMap^0|D|A|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

Add the following to <code>~/.iex.exs</code> in your home directory -- If the file doesn't exist, create it and add the following.

<pre><code>Application.put_env(:elixir, :ansi_enabled, true)
</code></pre>

Edit: Note that you'll need a term that supports this, ConEmu, Cmder, etc..

Please how can we clear the screen in <code>Iex</code> on Windows

Documented method in Iex help does not work:

<ul>
<li><code>clear/0</code> — clears the screen</li>
</ul>

<a href="https://stackoverflow.com/questions/17019455/how-to-clear-screen-in-iex/19556335#19556335" title="Previous answer">This StackOverflow Answer</a> also does not work in Windows.

How Can We Clear the Screen in Iex on Windows

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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请如何清除Iex上的屏幕在Iex帮助中记录的方法不起作用：clear/0 -清除屏幕在Windows中也不工作。

问如何在Windows上清除Iex中的屏幕
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