In many cases, XML files use style sheets to provide high-quality output on the screen. You can use the same data, but by sending the information to a speech synthesizer, the content of the text is for people with impaired vision. In addition, the same data may also create output value for Braille readers. The same files, project layouts and styles can also be used for high-quality printouts.
The beautiful concept is that you no longer need fussy and fidgety XML data to create different output devices. You only need to use different software, which can read XML and provide output in a specific format or output device.
Use the same data across platforms
Expect good news first, if there is no new news: XML files are not specific to any specific platform or programming language. That's why some e-mail home pages. Think about versatility. Suppose you want to have an Exchange database on the information network, that is, use a Web browser to send the information in the user questionnaire back to the Web server. In order to accomplish this task (and many other websites), the file format you need,
1 。 Extensible: Extensible format is a specific application, which can be customized or customized.
2 。 Introduction: This is well documented and widely circulated.
3 。 Generic drugs: This means that symbols in recognized or standard formats are not the exclusive property of some individuals, companies or organizations.
These features enable documents to adapt to changing conditions, make full use of other people's achievements, and avoid incurring additional costs or legal responsibilities.
What are the consequences? XML is a file format that meets all three requirements and exchanges data-it is open, extensible and non-proprietary. Not surprisingly, XML is the best choice for data exchange; These three magical features make it a convenient and consistent way to place data in multiple applications and platforms, which is the most efficient and troublesome.
Supplementary question: Implementing rules in your data.
Being good at XML allows you to create rules for data formats. Using a document type definition (dtd) or XML schema to validate data has two direct benefits:
1. This helps to ensure the accuracy of the information you collect.
2. It helps to ensure that the collected information is in the most useful format for your enterprise.
Output information in various ways.
The way you output data is to put it in the storage locker room-maybe somewhere in your computer-and it may be more useful to put it somewhere else. Great things are XML files, which are not limited to any particular form of output; They may eventually be suitable for various occasions in any form, for example, in databases, computer monitors, printers or PDA.
Go to Google to translate.