精美通用ppt模板鑰匙餅圖主題-文庫吧
2025-07-07 06:36 本頁面
【正文】 guage, described by the W3C as the successor of DTDs, is XML Schema, often referred to by the initialism for XML Schema instances, XSD (XML Schema Definition). XSDs are far more powerful than DTDs in describing XML languages. They use a rich datatyping system and allow for more detailed constraints on an XML document39。s logical structu
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