转义 XML 中的双引号字符

Escape double quote character in XML

提问by ufukgun

Is there an escape character for a double quote in xml? I want to write a tag like:

xml 中的双引号是否有转义字符？我想写一个标签，如：

<parameter name="Quote = " ">

but if I put ", then that means string has ended. I need something like this (c++):

但是如果我放了“，那么这意味着字符串已经结束。我需要这样的东西（c++）：

printf("Quote = \" ");

Is there a character to write before the double quote to escape it?

在双引号之前是否有一个字符要转义它？

回答by Andrew Hare

Try this:

尝试这个：

"

回答by Alex Muriithi

Here are the common characters which need to be escaped in XML, starting with double quotes:

以下是需要在 XML 中转义的常见字符，以双引号开头：

1. double quotes (") are escaped to "
2. ampersand (&) is escaped to &
3. single quotes (') are escaped to '
4. less than (<) is escaped to <
5. greater than (>) is escaped to >

1. 双引号 ( ") 被转义为"
2. ＆符号 ( &) 被转义为&
3. 单引号 ( ') 被转义为'
4. 小于 ( <) 被转义为<
5. 大于 ( >) 被转义为>

回答by Jon Skeet

Others have answered in terms of how to handle the specific escaping in this case.

其他人已经回答了如何处理这种情况下的特定转义。

A broader answer is not to try to do it yourself. Use an XML API - there are plenty available for just about every modern programming platform in existence.

更广泛的答案是不要尝试自己做。使用 XML API - 几乎所有现有的现代编程平台都有很多可用的。

XML APIs will handle things like this for you automatically, making it a lotharder to go wrong. Unless you're writing an XML API yourself, you should rarely need to worry about the details like this.

XML的API将自动处理这样的事情对你来说，使它成为很多困难出问题。除非您自己编写 XML API，否则您应该很少需要担心这样的细节。

回答by kjhughes

^{New, improved answer to an old, frequently asked question...}

^{对一个旧的、常见的问题的新的、改进的答案......}

When to escape double quote in XML

何时在 XML 中转义双引号

Double quote (") may appear without escaping:

双引号 ( ") 可能会出现而不转义：

• In XML textual content:

  <NoEscapeNeeded>He said, "Don't quote me."</NoEscapeNeeded>
  

• In XML attributes delimited by single quotes ('):

  <NoEscapeNeeded name='Pete "Maverick" Mitchell'/>
  

  Note:switching to single quotes (') also requires no escaping:

  <NoEscapeNeeded name="Pete 'Maverick' Mitchell"/>
  

• 在 XML 文本内容中：

  <NoEscapeNeeded>He said, "Don't quote me."</NoEscapeNeeded>
  

• 在由单引号 ( ')分隔的 XML 属性中：

  <NoEscapeNeeded name='Pete "Maverick" Mitchell'/>
  

  注意：切换到单引号 ( ') 也不需要转义：

  <NoEscapeNeeded name="Pete 'Maverick' Mitchell"/>
  

Double quote (") must be escaped:

双引号 ( ")必须转义：

• In XML attributes delimited by double quotes:

  <EscapeNeeded name="Pete &quot;Maverick&quot; Mitchell"/>
  

• 在由双引号分隔的 XML 属性中：

  <EscapeNeeded name="Pete &quot;Maverick&quot; Mitchell"/>
  

Bottom line

底线

Double quote (") must be escaped as "in XML only in very limited contexts.

双引号 ( ") 必须像"在 XML 中一样仅在非常有限的上下文中进行转义。

回答by Matt Howells

No there isn't an escape character as such, instead you can use "or even <![CDATA["]]>to represent the "character.

不，没有这样的转义字符，相反，您可以使用"甚至<![CDATA["]]>来表示该"字符。

回答by Brad Cupit

If you just need to try something out quickly, here's a quick and dirty solution. Use single quotes for the attribute value:

如果您只需要快速尝试一些东西，这里有一个快速而肮脏的解决方案。对属性值使用单引号：

<parameter name='Quote = " '>

回答by Neven

In C++ you can use EscapeXML ATL API. This is the correct way of handling special chars ...

在 C++ 中，您可以使用 EscapeXML ATL API。这是处理特殊字符的正确方法......

回答by E-max

You can try using the a backslash followed by a "u" and then the unicode value for the character, for example the unicode value of the double quote is

您可以尝试使用反斜杠后跟“u”，然后是字符的 unicode 值，例如双引号的 unicode 值是

" -> U+0022

" -> U+0022

Therefore if you were setting it as part of text in XML in android it would look something like this,

因此，如果您将其设置为 android 中 XML 文本的一部分，它将看起来像这样，

<TextView
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:text=" \u0022 Showing double quotes \u0022 "/>

This would produce a text in the TextView roughly something like this

这将在 TextView 中产生一个大致像这样的文本

" Showing double quotes "

" 显示双引号 "

You can find unicode of most symbols and characters here www.unicode-table.com/en

您可以在这里找到大多数符号和字符的 unicode www.unicode-table.com/en