XML Schema 1.1 is bringing in the notion of constraints into XML Schema through assertions within data types but without message customization.
XMLSchema 1.1通过数据类型内的断言将约束的概念带入了XML Schema，不过，不能进行消息定制。
XML Schema 1.1 is bringing in the notion of constraints into XML Schema through assertions within data types but without message customization.
XMLSchema 1.1通过数据类型内的断言将约束的概念带入了XML Schema，不过，不能进行消息定制。
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