Example analysis of xpath

.//: Indicates the current page

*: Indicates the selector

[@id=' ']: Selects the id as..

/dlL: The first dl under the superior id

/dd[5]: The fifth dd under the superior dl

/p[1]: The superior The first p

/span[1]: The first span

under the superior level can be added with text() at the end to get the value of the selected tag

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