是HTML第二个"mother"，难怪比HTML功能强大呢。 )，和SGML一样，XML也可以应用在金融，科研等各个领域，我们这里讲的，只是XML在web方面的运用而已。 到这里，你应该有点明白了：XML是用来创建定义类似HTML的标记语言，然后再用这个标记语言来显示信息。 三.

Standard Generalized Markup Language (SGML) is a way of expressing data in text-processing applications. It's been around for more than a decade; both XML and HTML are document formats derived ...

(See the sections on CSS and XSL below for more on formatting XML.) Separation of content and presentation is a key concept inherited from SGML. A lot of the programming is already done for you ...

Whereas HTML uses a fixed set of tags or codes to describe pages, XML maintains the flexible meta-language characteristics of SGML by defining the codes that will be used in each document.

Scholarly Digital Editions has released Anastasia, their next generation XML electronic publication system. Anastasia — which stands for Analytic System Tools and SGML/XML integration ...

Unlike SGML, the XML DTD was always optional, because the framers of XML knew there was enormous value in documents that were merely well-formed, even if not valid with respect to a DTD.