什么是“= C2 = A0”在MIME编码，引用可打印的文本？

本文介绍了什么是“= C2 = A0”在MIME编码，引用可打印的文本？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

  MIME-version：1.0 
 Content-键入：text / html; charset = UTF-8 
内容传输编码：quoted-printable 
 X-Mailer：Verizon Webmail 
 X-Origination-IP：[xxxx] 
 
 = C2 = A0test测试测试123

什么是= C2 = A0？我已经尝试了六打可打印的解析器，但是没有人正确地处理。

老实说，现在我正在编码：

  // TODO WTF 
 encoded = encoded.Replace（= C2 = A0，）;

因为我不知道MIME内容中随机出现的文字，应该被渲染成任何东西。为了清楚，我知道（= [0-9A-F] {2 }）是一个编码字符。但是在这种情况下，它似乎代表NOTHING。

解决方案

= C2 = A0表示字节C2 A0。然而，由于这是UTF-8，它转换为00A0，这是不间断空间的Unicode。

请参阅

This is an example raw email I am trying to parse:

MIME-version: 1.0
Content-type: text/html; charset=UTF-8
Content-transfer-encoding: quoted-printable
X-Mailer: Verizon Webmail
X-Originating-IP: [x.x.x.x]

=C2=A0test testing testing 123

What is =C2=A0? I have tried a half dozen quoted-printable parsers, but none handle this correctly. How would one properly parse this in C#?

Honestly, for now, I'm coding:

//TODO WTF
encoded = encoded.Replace("=C2=A0", "");

Because I can't figure out why that text is there randomly within the MIME content, and isn't supposed to be rendered into anything. By just removing it, I'm getting the desired effect - but WHY?!

To be clear, I know that (=[0-9A-F]{2}) is an encoded character. But in this case, it seemingly represents NOTHING.

解决方案

"=C2=A0" represents the bytes C2 A0. However, since this is UTF-8, it translates to 00A0, which is the Unicode for non-breaking space.

See http://en.wikipedia.org/wiki/UTF-8

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什么是“= C2 = A0”在MIME编码，引用可打印的文本？

问题描述