XML <![CDATA[]]>

• Is <![CDATA[]]>this marker will be expressed containing plain text,   <![CDATA[<]]>representing the text“<” ,在xml中，”<”、”>”、”&”等字符是不能直接存入的，否则xml语法检查时会报错，如果想在xml中使用这些符号，必须将其转义为实体，如”&lt;”、”&gt;”、”&amp;”，这样才能保存. 程序读取的时候，解析器会自动将这些实体转换回”<”、”>”、”&”。

  < Age > Age < 30 </ Age >   // The wording being given
   < Age > Age & lt; 30 </ Age > // should be written

   

• In XML, you need to escape characters are:

  &　　　& 
  <　　　&lt; 
  >　　　&gt; 
  ＂　　　&quot; 
  ＇　　　&apos; 

   

• It is <! [CDATA []]> content does not contain XML parser, but be careful: 

  1. This section can not contain "]]>" 
  2. allowed to nest 
  3. "]]>" part can not contain spaces or newline 
  benefits: 
  <[CDATA []]>! Represents xml parser parses ignored, so faster