我开始在w3cschool学习xpath.我正在尝试评估游戏中的玩家数量. (所以计算screenname和text()元素/属性)
这是我的示例xml:
<game> <info> <name>My Game</name> <description>A <i>very</i> interesting game.</description> <started>2012-03-01T18:00:00Z</started> <players number="2"> <screenname player="1">Alice</screenname> <screenname player="2">Bob</screenname> </players> <rounds>2</rounds> <winner player="2"/> </info> </game>
我使用的xpath查询是:
//game/info/players[count(.//screenname/text())]
但我只得到:
"Result is a NodeSet containing 1 element"
(工具:http://www.whitebeam.org/library/guide/TechNotes/xpathtestbed.rhtm)
是什么导致这个错误?