Special XML Character Processing

In XML, some symbols are used as the markup symbols of XML. In some cases, attribute values must carry these special symbols. The following describes how to process common special symbols.

Example 1: Use double quotation marks.

Double quotation marks are the start and end symbols of XML Attribute values. Therefore, you cannot directly use "" In values. There are two processing methods.

A: The attribute value does not contain '(single quotes). You can use' as the start and end symbol of the attribute value.

< Add Key = " IPhone " Value = "Apple" />... The property value is ("apple ").

solution: Add key = " iPhone " value =' " apple "' />

B: The attribute values include '(single quotation marks) and double quotation marks. For example... The property value is ("'apple ").

< Add Key = " IPhone " Value = "& Quot;& Apos;Apple& Quot;" />

The following table lists five built-in entities for the characters used by the XML tag.

Entity	Entity reference	Description
Lt	& Lt;	<(Yu no)
GT	& Gt;	> (Greater than the number)
Amp	& Amp;	& ("And)
APOs	& Apos;	'(Apostrophes or single quotes)
Quot	& Quot;	"(Double quotation marks)

If the character may cause the XML analyzer to incorrectly interpret the document structure, use an object instead of a character.& Apos;And& Quot;Object references are most commonly used in attribute values.