2. pay attention to the case sensitivity in HTML, the case sensitivity is not very sensitive, but XML is very strict with the case sensitivity request. if the start ID is in uppercase, the end ID must be in uppercase. 3. all identifiers with "beginning and end" must have corresponding knots. 2. be careful with case sensitivity.
The case sensitivity in HTML is not very sensitive, but XML is very strict with the case request. if the start mark is in uppercase, the end mark must be in uppercase.
3. all "start and end" identifiers must have corresponding end identifiers
People familiar with HTML know that there are many similar HTML
, And so on. The End ID is dispensable, but XML does not agree to this situation.
4. the empty identifier (empty element) must be closed.
, Etc. what should we do?
Added/in XML to end empty identifiers.
<Id/>
<Id property name = "property value"/>
5. quote the property value
You can add ''or'' to the attribute values in HTML ''. However, in XML, the attribute value must be ''.
