[GRT] a simple summary XML

First, XML basics

The main purpose of XML (I think these three points):

  XML to separate data from HTML
  XML simplifies data sharing
  XML simplifies data transmission p>

XML syntax rules:

  • XML document must have a root element
  • XML document must have a closing tag
  • XML tags are case sensitive
  • XML elements must be Correct nesting
  • XML attributes must be enclosed in quotation marks For example:
  • XML comment:

For example:

          //define the version of XML (1.0) and the encoding used (ISO-8859-1 = Latin-1/Western European characters set).
  //quote css file
    //Use XLST

                          //root element note
  George                   //Sub-element to
  John                  //Sub-element from
  Reminder
  Don‘t forget the meeting!

  

In XML, five predefined entity references:

< td style="text-align: left;">Less than

< <
> > greater than
& & Ampersand
' Single quote
"

quotation marks


Second, advanced

          //Define the version of XML (1.0) and the encoding used (ISO-8859-1 = Latin-1/Western European character set).
  //quote css file
    //Use XLST

                          //root element note
  George                   //Sub-element to
  John                  //Sub-element from
  Reminder
  Don‘t forget the meeting!

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