This chapter describes modules which support handling data formats commonly used on the Internet.
本章描述的模组帮助我们处理在互联网上通常会遇到的资料格式。
In this series, we covered basic connectivity between service requesters and service providers across a selection of commonly used protocols and message formats.
在本系列中，我们通过选择一系列常用协议和消息格式，讨论了服务请求者和服务提供者之间的基本连接性。
The DTD and XSD formats are basically extracts from an XML structure and are commonly used wherever XML documents are found.
DTD和xsd格式基本上从一个XML结构提取，广泛用于XML文档所在之处。
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