2024-11-26SGML（标准通用标记语言）和HTML（超文本标记语言），XML（可扩展标记语言）和HTML的之间有什么关系？SGML,HTML,andXMLareallmarkuplanguages,buttheyhavedifferentrolesandrelationships:SGML(StandardGeneralizedMarkupLanguage):ThinkofSGMLasthegrandparent.It'saverypowerfulandcomplexmetalanguage–alanguagefordefiningo