blocks|key|1279607|text|是啊，这很正常。doc给出了一个示例，演示了行分割。base64在其他语言中也做同样的事情(例如。Python)。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1279608|在编码阶段添加无内容换行符的原因是，base64最初设计为一种用于在电子邮件中发送二进制内容的编码机制，其中行长度是有限的。如果您不需要它们，请随时更换它们。|1279609|entityMap|0|LINK|mutability|MUTABLE|url|http://ruby-doc.org/stdlib/libdoc/base64/rdoc/classes/Base64.html#M000005^0|8|3|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

Yeah, this is quite normal. The <a href="http://ruby-doc.org/stdlib/libdoc/base64/rdoc/classes/Base64.html#M000005" rel="noreferrer">doc</a> gives an example demonstrating the line-splitting. base64 does the same thing in other languages too (eg. Python).

The reason content-free newlines are added at the encode stage is because base64 was originally devised as an encoding mechanism for sending binary content in e-mail, where the line length is limited. Feel free to replace them away if you don't need them.

blocks|key|1279643|text|在ruby-1.9.2中，您有Base64.strict_encode64，它不会在末尾添加\n+(换行符)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1279644|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|$]]

In ruby-1.9.2 you have Base64.strict_encode64 which doesn't add that \n (newline) at the end.

blocks|key|1064956|text|似乎它们必须被剥离/忽略，就像：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1064957|Base64.encode64(str).gsub(/\n/,+'')|code-block|syntax|javascript|1064958|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Seems they've got to be stripped/ignored, like:

<pre><code>Base64.encode64(str).gsub(/\n/, '')
</code></pre>

blocks|key|1279734|text|使用Base64#encode64时添加的\n是正确的，请查看此帖子：https://glaucocustodio.github.io/2014/09/27/a-reminder-about-base64encode64-in-ruby/|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1279735|entityMap|0|LINK|mutability|MUTABLE|url|https://glaucocustodio.github.io/2014/09/27/a-reminder-about-base64encode64-in-ruby/^0|2|F|L|2|Z|2C|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]|$9|Q|A|R|B|C]]|D|@$9|S|A|T|1|U]]|E|$]]|$1|F|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

The <code>\n</code> added when using <code>Base64#encode64</code> is correct, check this post out: <a href="https://glaucocustodio.github.io/2014/09/27/a-reminder-about-base64encode64-in-ruby/" rel="nofollow noreferrer">https://glaucocustodio.github.io/2014/09/27/a-reminder-about-base64encode64-in-ruby/</a>

blocks|key|1279762|text|使用strict_encode64方法。encode64每60个符号添加\n一次|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1279763|entityMap^0|2|F|K|8|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

Use <code>strict_encode64</code> method. <code>encode64</code> adds \n every 60 symbols

The inbuilt Base64 library in Ruby is adding some '\n's. I'm unable to find out the reason. For this special example:

<pre><code>irb(main):001:0&gt; require 'rubygems'
=&gt; true
irb(main):002:0&gt; require 'base64'
=&gt; true
irb(main):003:0&gt; str = "1110--ad6ca0b06e1fbeb7e6518a0418a73a6e04a67054"
=&gt; "1110--ad6ca0b06e1fbeb7e6518a0418a73a6e04a67054"
irb(main):004:0&gt; Base64.encode64(str)
=&gt; "MTExMC0tYWQ2Y2EwYjA2ZTFmYmViN2U2NTE4YTA0MThhNzNhNmUwNGE2NzA1\nNA==\n"
</code></pre>

The \n's are at the last and 6th position from end. The decoder (Base64.decode64) returns back the old string perfectly. Strange thing is, these \n's don't add any value to the encoded string. When I remove the newlines from the output string, the decoder decodes it again perfectly.

<pre><code>irb(main):005:0&gt; Base64.decode64(Base64.encode64(str).gsub("\n", '')) == str
=&gt; true
</code></pre>

More of this, I used an another JS library to produce the base64 encoded output of the same input string, the output comes without the \n's.

Is this a bug or anything else? Has anybody faced this issue before?

FYI,

<pre><code>$ ruby -v
ruby 1.8.7 (2008-08-11 patchlevel 72) [i486-linux]
</code></pre>

Strange \n in base64 encoded string in Ruby

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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Ruby内置的Base64库添加了一些\n，我找不到原因。对于这个特殊的例子：irb(main):001:0> require 'rubygems'=> trueirb(main):002:0> require 'base64'=> trueirb(main):003:0> str =  "1110--ad6ca0b0...

问Ruby中的base64编码字符串奇怪\n
EN

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问Ruby中的base64编码字符串奇怪\nEN