[1] W3C XML Schema Definition Language (XSD) 1.1 Part 2: Datatypes ( ( 版)) http://www.w3.org/TR/2012/REC-xmlschema11-2-20120405/#hexBinary
[2] XPath and XQuery Functions and Operators 3.0 ( ( 版)) http://www.w3.org/TR/xpath-functions-3/#binary-functions
[3] XPath and XQuery Functions and Operators 3.1 () https://www.w3.org/TR/2017/REC-xpath-functions-31-20170321/#func-hexBinary-equal