sum - XPath 编辑
XSLT/XPath Reference: XSLT elements, EXSLT functions, XPath functions, XPath axes
The sum function returns a number that is the sum of the numeric values of each node in a given node-set.
Syntax
sum(node-set )
Arguments
node-set- The node-set to be evaluated. Each node in this node-set is evaluated as if it were passed to the number() function, and a sum of the resulting numbers is returned.
Returns
A number.
Notes
(None)
Defined
Gecko support
Supported.
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