我想删除如下的整个 <direction> 标签,但是使用后面的代码, 只删除了自身所在标签<direction placement="above"><direction-type><rehearsal default-x="-20.55" relative-y="30.00" font-weight="bold" font-size="14">ABC</rehearsal></direction-type></direction>$test = @'<?xml version="1.0" encoding="UTF-8"?><score-partwise version="3.1"> <part id="P1"> <measure number="1" width="118.81"> <direction placement="above"> <direction-type> <rehearsal default-x="-20.55" relative-y="30.00" font-weight="bold" font-size="14">ABC</rehearsal> </direction-type> </direction> <direction placement="above"> <direction-type> <rehearsal default-x="-40.55" relative-y="60.00" font-weight="bold" font-size="14">CDE</rehearsal> </direction-type> </direction> </measure> </part> </score-partwise>'@[xml]$a = $test$b = $a.SelectSingleNode("//direction-type/rehearsal[text()='ABC']")if ($b){ $b.ParentNode.RemoveChild($b)}$a.save("ok.xml")