<message>Hello Word!</message>
<name> <first>zhang</first> <last>san</last></name>
<name> <first>zhang</first> <last>san</last></name>
The character must be replaced with the corresponding entity.
If similar characters are used in the document, the parser will have an error because the parser considers this as the beginning of a new element. Therefore, you should not write code like the following:
<! -- Google map URL -->
<Add key = "GoogleMapURL" value = 'HTTP: // mt {0} success> </add>
Convert to an object, for example:
<! -- Google map URL -->
<Add key = "GoogleMapURL" value = 'HTTP: // mt {0} success> </add>
Objects pre-defined in the document:
And & double quotes greater than signs> & lt;
And end with a symbol.
Only characters and characters are strictly forbidden. The rest are legal. It is a good habit to use entities to reduce errors.