XML`

ExpressionToSymbolicExpressionML

converts expr to ExpressionML and returns the corresponding SymbolicXML.

更多信息和选项

To use ExpressionToSymbolicExpressionML, you first need to load the XML Package using Needs["XML`"].
The following options can be given:

"Annotations"

{"XMLDeclaration", "DOCTYPEDeclaration", "DocumentHeader"}

annotations to add to the output (acceptable values are combinations of "DocumentHeader", "XMLDeclaration", and "DOCTYPEDeclaration")

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