我有一个XML文件，它是一个关于高速公路横截面点的报告。生成文件时，一些元素最多复制4次，但4个中只有1个包含“斜率”字段，这是我最终报告的关键字段。
我希望根据缺少的斜率属性排除这些节点/元素，但保留包含此属性的节点/元素。
**我的XML剪辑，带有正确形成的横截面点集：
-<CrossSectionStation longitudinalGrade="0.000000" elevation="0.000000" easting="342721.507535" northing="5048123.408983" radialDirection="1.267593" tangentialDirection="5.979982" rightOffset="10.562000" leftOffset="-9.597000" instantaneousRadius="1164.251000">
<Station externalStation="11699.999930" externalStationName="" internalStation="11699.999930"/>
-<CrossSectionSurfaces>
-<CrossSectionSurface type="1" name="Tehk_Design">
-<CrossSectionPoints>
-<CrossSectionPoint elevation="181.053000" easting="342715.470121" northing="5048121.520257" type="CrossSectionPoint" flag="Begin" offset="-6.325950">
-<CrossSectionFeatures>
<CrossSectionFeature name="LOS-Unpaved" aheadLongitudinalSlope="0.018811" description="Created by roadway design" style="Lawn" backLongitudinalSlope="0.015301"/>
</CrossSectionFeatures>
<CrossSectionSegment slope="-0.041488" length="1.399203" height="-0.058000" width="1.398000" averageCrossSlopeArea="92.467558"/>
</CrossSectionPoint>
-<CrossSectionPoint elevation="181.111000" easting="342716.804352" northing="5048121.937670" type="CrossSectionPoint" offset="-4.927950">
-<CrossSectionFeatures>
<CrossSectionFeature name="LOS" aheadLongitudinalSlope="0.019897" description="Created by roadway design" style="Shoulder" backLongitudinalSlope="0.015183"/>
</CrossSectionFeatures>
<CrossSectionSegment slope="-0.032086" length="1.683866" height="-0.054000" width="1.683000" averageCrossSlopeArea="96.359778"/>
</CrossSectionPoint>
-<CrossSectionPoint elevation="181.165000" easting="342718.410582" northing="5048122.440178" type="CrossSectionPoint" offset="-3.244950">
-<CrossSectionFeatures>
<CrossSectionFeature name="LEP" aheadLongitudinalSlope="0.019428" description="Created by roadway design" style="EOP" backLongitudinalSlope="0.015258"/>
</CrossSectionFeatures>
<CrossSectionSegment slope="0.026132" length="3.246058" height="0.084797" width="3.244950"/>
</CrossSectionPoint>
-<CrossSectionPoint elevation="181.079000" easting="342721.551463" northing="5048123.422800" type="CrossSectionPoint" offset="0.046050">
-<CrossSectionFeatures>
<CrossSectionFeature name="CL" aheadLongitudinalSlope="0.018582" description="Created by roadway design" style="Centerline" backLongitudinalSlope="0.015160"/>
</CrossSectionFeatures>
<CrossSectionSegment slope="-0.026132" length="0.046066" height="-0.001203" width="0.046050"/>
</CrossSectionPoint>
-<CrossSectionPoint elevation="180.958000" easting="342724.776330" northing="5048124.431697" type="CrossSectionPoint" offset="3.425050">
-<CrossSectionFeatures>
<CrossSectionFeature name="REP" aheadLongitudinalSlope="0.018796" description="Created by roadway design" style="EOP" backLongitudinalSlope="0.014588"/>
</CrossSectionFeatures>
<CrossSectionSegment slope="-0.035809" length="3.381166" height="-0.121000" width="3.379000" averageCrossSlopeArea="192.331956"/>
</CrossSectionPoint>
-<CrossSectionPoint elevation="180.870000" easting="342726.297620" northing="5048124.907631" type="CrossSectionPoint" offset="5.019050">
-<CrossSectionFeatures>
<CrossSectionFeature name="ROS" aheadLongitudinalSlope="0.018099" description="Created by roadway design" style="Shoulder" backLongitudinalSlope="0.014358"/>
</CrossSectionFeatures>
<CrossSectionSegment slope="-0.055207" length="1.596427" height="-0.088000" width="1.594000" averageCrossSlopeArea="79.348793"/>
</CrossSectionPoint>
-<CrossSectionPoint elevation="180.761000" easting="342727.506826" northing="5048125.285930" type="CrossSectionPoint" offset="6.286050">
-<CrossSectionFeatures>
<CrossSectionFeature name="ROS-Unpaved" aheadLongitudinalSlope="0.019438" description="Created by roadway design" style="Lawn" backLongitudinalSlope="0.016869"/>
</CrossSectionFeatures>
<CrossSectionSegment slope="-0.086030" length="1.271680" height="-0.109000" width="1.267000" averageCrossSlopeArea="109.924454"/>
</CrossSectionPoint>
</CrossSectionPoints>
**我的XML剪辑有多个重复要删除输出电子表格：
-<CrossSectionStation longitudinalGrade="0.000000" elevation="0.000000" easting="342678.439626" northing="5048318.465164" radialDirection="1.439378" tangentialDirection="6.151767" rightOffset="7.851000" leftOffset="-8.001000" instantaneousRadius="1164.251000">
<Station externalStation="11900.000000" externalStationName="" internalStation="11900.000000"/>
-<CrossSectionSurfaces>
-<CrossSectionSurface type="1" name="Tehk_Design">
-<CrossSectionPoints>
-<CrossSectionPoint elevation="184.686334" easting="342672.441830" northing="5048317.672373" type="CrossSectionPoint" flag="Begin" offset="-6.049965">
-<CrossSectionFeatures>
<CrossSectionFeature name="LOS-Unpaved" aheadLongitudinalSlope="0.016925" description="Created by roadway design" style="Lawn" backLongitudinalSlope="0.017052"/>
</CrossSectionFeatures>
<CrossSectionSegment slope="-0.116733" length="1.033989" height="-0.119886" width="1.027015"/>
</CrossSectionPoint>
-<CrossSectionPoint elevation="184.806546" easting="342673.462757" northing="5048317.807319" type="CrossSectionPoint" offset="-5.020158">
-<CrossSectionFeatures>
<CrossSectionFeature name="LOS" aheadLongitudinalSlope="0.016573" description="Created by roadway design" style="Shoulder" backLongitudinalSlope="0.017549"/>
</CrossSectionFeatures>
<CrossSectionSegment slope="-0.032671" length="1.787161" height="-0.058357" width="1.786208" averageCrossSlopeArea="90.739170"/>
</CrossSectionPoint>
-<CrossSectionPoint elevation="184.864903" easting="342675.233563" northing="5048318.041385" type="CrossSectionPoint" offset="-3.233950">
-<CrossSectionFeatures>
<CrossSectionFeature name="LEP" aheadLongitudinalSlope="0.016429" description="Created by roadway design" style="EOP" backLongitudinalSlope="0.018203"/>
</CrossSectionFeatures>
<CrossSectionSegment length="0.000317" height="-0.000010" width="0.000317" averageCrossSlopeArea="0.007925"/>
</CrossSectionPoint>
-<CrossSectionPoint elevation="184.864914" easting="342675.233877" northing="5048318.041427" type="CrossSectionPoint" offset="-3.233633">
-<CrossSectionFeatures>
<CrossSectionFeature name="LEP" aheadLongitudinalSlope="0.016429" description="Created by roadway design" style="EOP" backLongitudinalSlope="0.018203"/>
</CrossSectionFeatures>
<CrossSectionSegment slope="0.030621" length="3.235149" height="0.099016" width="3.233633"/>
</CrossSectionPoint>
-<CrossSectionPoint elevation="184.763633" easting="342678.512952" northing="5048318.474856" type="CrossSectionPoint" offset="0.073963">
-<CrossSectionFeatures>
<CrossSectionFeature name="CL" aheadLongitudinalSlope="0.016771" description="Created by roadway design" style="Centerline" backLongitudinalSlope="0.018281"/>
</CrossSectionFeatures>
<CrossSectionSegment slope="-0.030621" length="0.073998" height="-0.002265" width="0.073963"/>
</CrossSectionPoint>
-<CrossSectionPoint elevation="184.763630" easting="342678.513038" northing="5048318.474868" type="CrossSectionPoint" offset="0.074050">
-<CrossSectionFeatures>
<CrossSectionFeature name="CL" aheadLongitudinalSlope="0.016771" description="Created by roadway design" style="Centerline" backLongitudinalSlope="0.018281"/>
</CrossSectionFeatures>
<CrossSectionSegment length="0.000087" height="-0.000003" width="0.000087" averageCrossSlopeArea="0.002174"/>
</CrossSectionPoint>
-<CrossSectionPoint elevation="184.661095" easting="342681.820271" northing="5048318.912020" type="CrossSectionPoint" offset="3.410050">
-<CrossSectionFeatures>
<CrossSectionFeature name="REP" aheadLongitudinalSlope="0.016450" description="Created by roadway design" style="EOP" backLongitudinalSlope="0.018392"/>
</CrossSectionFeatures>
<CrossSectionSegment slope="-0.030736" length="3.337575" height="-0.102535" width="3.336000" averageCrossSlopeArea="167.476560"/>
</CrossSectionPoint>
-<CrossSectionPoint elevation="184.661073" easting="342681.820984" northing="5048318.912114" type="CrossSectionPoint" offset="3.410768">
-<CrossSectionFeatures>
<CrossSectionFeature name="REP" aheadLongitudinalSlope="0.016450" description="Created by roadway design" style="EOP" backLongitudinalSlope="0.018392"/>
</CrossSectionFeatures>
<CrossSectionSegment length="0.000719" height="-0.000022" width="0.000718" averageCrossSlopeArea="0.017969"/>
</CrossSectionPoint>
-<CrossSectionPoint elevation="184.567875" easting="342683.404492" northing="5048319.121423" type="CrossSectionPoint" offset="5.008050">
-<CrossSectionFeatures>
<CrossSectionFeature name="ROS" aheadLongitudinalSlope="0.017219" description="Created by roadway design" style="Shoulder" backLongitudinalSlope="0.018264"/>
</CrossSectionFeatures>
<CrossSectionSegment slope="-0.058348" length="1.599998" height="-0.093199" width="1.597282" averageCrossSlopeArea="78.130412"/>
</CrossSectionPoint>
-<CrossSectionPoint elevation="184.567856" easting="342683.404816" northing="5048319.121466" type="CrossSectionPoint" offset="5.008377">
-<CrossSectionFeatures>
<CrossSectionFeature name="ROS" aheadLongitudinalSlope="0.017219" description="Created by roadway design" style="Shoulder" backLongitudinalSlope="0.018264"/>
</CrossSectionFeatures>
<CrossSectionSegment length="0.000328" height="-0.000019" width="0.000327" averageCrossSlopeArea="0.008192"/>
</CrossSectionPoint>
-<CrossSectionPoint elevation="184.474567" easting="342684.250248" northing="5048319.233215" type="CrossSectionPoint" offset="5.861162">
-<CrossSectionFeatures>
<CrossSectionFeature name="ROS-Unpaved" aheadLongitudinalSlope="0.018074" description="Created by roadway design" style="Lawn" backLongitudinalSlope="0.017443"/>
</CrossSectionFeatures>
<CrossSectionSegment slope="-0.109393" length="0.001119" height="-0.000122" width="0.001112"/>
</CrossSectionPoint>
</CrossSectionPoints>
**我修改过的XSL，即正确格式化所有内容但不删除重复项：
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.1" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:fo="http://www.w3.org/1999/XSL/Format" xmlns:msxsl="urn:schemas-microsoft-com:xslt" xmlns:inr="http://mycompany.com/mynamespace">
<xsl:include href="../format.xsl"/>
<xsl:param name="xslRootDirectory" select="inr:xslRootDirectory"/>
<!-- Unique cross section surfaces -->
<xsl:variable name="uniqueSurfaceName" select="//CrossSectionSurfaces/CrossSectionSurface[not (@name = preceding::CrossSectionSurface/@name)]/@name"/>
<!-- Slope Stake Listing -->
<xsl:template match="/">
<xsl:variable name="gridOut" select="inr:SetGridOut(number(InRoads/@outputGridScaleFactor))"/>
<html>
<head>
<link rel="stylesheet" type="text/css" href="{$xslRootDirectory}/_Themes/engineer/document.css"/>
<!-- Title displayed in browser Title Bar -->
<title lang="en">Slope Stake Listing</title>
</head>
<body>
<xsl:choose>
<xsl:when test="$xslShowHelp = 'true'">
<xsl:call-template name="StyleSheetHelp"/>
</xsl:when>
<xsl:otherwise>
<xsl:for-each select="InRoads">
<center>
<!-- Report Title -->
<h6 lang="en">SLOPE STAKE LISTING</h6>
<p lang="en">
<xsl:value-of select="inr:longDate()"/>  <xsl:value-of select="inr:longTime()"/>
</p>
</center>
<!-- Cross Section Set Data -->
<xsl:for-each select="CrossSectionSet">
<table class="margin">
<tbody>
<tr>
<td lang="en">Set Name:  </td>
<td><xsl:value-of select="@setName"/></td>
</tr>
<tr>
<td lang="en">Project Units:  </td>
<td lang="en">
<xsl:if test="//@linearUnits = 'Imperial'">US Survey Feet</xsl:if>
<xsl:if test="//@linearUnits = 'Metric'">Metric</xsl:if>
</td>
</tr>
<tr>
<td lang="en">Contract No.:  </td>
<td> </td>
</tr>
<tr>
<td lang="en">Co./Rte./PM:  </td>
<td> </td>
</tr>
</tbody>
</table>
<hr/>
<!-- Cross Section Point Data -->
<table class="margin" width="90%">
<xsl:for-each select="$uniqueSurfaceName[../@type = 1]">
<xsl:for-each select="//CrossSectionSurface[@name = current()]">
<xsl:for-each select="CrossSectionPoints">
<!-- Alignment Name -->
<tr>
<th colspan="11" lang="en">
Alignment Chain:  <xsl:value-of select="../../../../../@alignmentName"/>
</th>
</tr>
<!-- Station -->
<tr>
<th colspan="11" lang="en">
Station:  <xsl:value-of select="inr:stationFormat(number(../../../Station/@externalStation), $xslStationFormat,$xslStationPrecision, string(../../../Station/@externalStationName))"/>
</th>
</tr>
<!-- Feature Name -->
<tr>
<xsl:for-each select="CrossSectionPoint[position() = 1][not (CrossSectionFeatures/CrossSectionFeature/@name)]">
<th>CP</th>
</xsl:for-each>
<xsl:for-each select="CrossSectionPoint[CrossSectionFeatures/CrossSectionFeature/@name] | CrossSectionPoint[not (CrossSectionFeatures/CrossSectionFeature/@name) and (@offset > -0.0001 and @offset < 0.0001)]">
<th>
<xsl:value-of select="CrossSectionFeatures/CrossSectionFeature/@name"/>
</th>
</xsl:for-each>
<xsl:for-each select="CrossSectionPoint[position() = last()][not (CrossSectionFeatures/CrossSectionFeature/@name)]">
<th>CP</th>
</xsl:for-each>
</tr>
<!-- Offset -->
<tr>
<xsl:for-each select="CrossSectionPoint[position() = 1][not (CrossSectionFeatures/CrossSectionFeature/@name)]">
<td align="center" style="padding-left:5px;padding-right:5px;white-space:nowrap;">
<xsl:value-of select="inr:distanceFormat(number(@offset), $xslDistancePrecision)"/>
</td>
</xsl:for-each>
<xsl:for-each select="CrossSectionPoint[CrossSectionFeatures/CrossSectionFeature/@name] | CrossSectionPoint[not (CrossSectionFeatures/CrossSectionFeature/@name) and (@offset > -0.0001 and @offset < 0.0001)]">
<td align="center" style="padding-left:5px;padding-right:5px;white-space:nowrap;">
<xsl:value-of select="inr:distanceFormat(number(@offset), $xslDistancePrecision)"/>
</td>
</xsl:for-each>
<xsl:for-each select="CrossSectionPoint[position() = last()][not (CrossSectionFeatures/CrossSectionFeature/@name)]">
<td align="center" style="padding-left:5px;padding-right:5px;white-space:nowrap;">
<xsl:value-of select="inr:distanceFormat(number(@offset), $xslDistancePrecision)"/>
</td>
</xsl:for-each>
</tr>
<!-- Elevation -->
<tr>
<xsl:for-each select="CrossSectionPoint[position() = 1][not (CrossSectionFeatures/CrossSectionFeature/@name)]">
<td align="center" style="padding-left:5px;padding-right:5px;white-space:nowrap;">
<xsl:value-of select="inr:elevationFormat(number(@elevation), $xslElevationPrecision)"/>
</td>
</xsl:for-each>
<xsl:for-each select="CrossSectionPoint[CrossSectionFeatures/CrossSectionFeature/@name] | CrossSectionPoint[@offset > -0.0001 and @offset < 0.0001]">
<td align="center" style="padding-left:5px;padding-right:5px;white-space:nowrap;">
<xsl:value-of select="inr:elevationFormat(number(@elevation), $xslElevationPrecision)"/>
</td>
</xsl:for-each>
<xsl:for-each select="CrossSectionPoint[position() = last()][not (CrossSectionFeatures/CrossSectionFeature/@name)]">
<td align="center" style="padding-left:5px;padding-right:5px;white-space:nowrap;">
<xsl:value-of select="inr:elevationFormat(number(@elevation), $xslElevationPrecision)"/>
</td>
</xsl:for-each>
</tr>
<!-- Slope -->
<tr>
<xsl:for-each select="CrossSectionPoint[position() = 1][not (CrossSectionFeatures/CrossSectionFeature/@name)]">
<td align="center" style="padding-left:5px;padding-right:5px;white-space:nowrap;">
<xsl:value-of select="inr:alternateGradeFormat(number(CrossSectionSegment/@slope), $xslGradeFormat, $xslGradePrecision, $xslIfSlopeExceeds, $xslAlternateSlopeFormat, $xslAlternateSlopePrecision)"/>
</td>
</xsl:for-each>
<xsl:for-each select="CrossSectionPoint[CrossSectionFeatures/CrossSectionFeature/@name] | CrossSectionPoint[not (CrossSectionFeatures/CrossSectionFeature/@name) and (@offset > -0.0001 and @offset < 0.0001)]">
<td align="center" style="padding-left:5px;padding-right:5px;white-space:nowrap;">
<xsl:value-of select="inr:alternateGradeFormat(number(CrossSectionSegment/@slope), $xslGradeFormat, $xslGradePrecision, $xslIfSlopeExceeds, $xslAlternateSlopeFormat, $xslAlternateSlopePrecision)"/>
</td>
</xsl:for-each>
<xsl:for-each select="CrossSectionPoint[position() = last()][not (CrossSectionFeatures/CrossSectionFeature/@name)]">
<td align="center" style="padding-left:5px;padding-right:5px;white-space:nowrap;">
<xsl:value-of select="inr:alternateGradeFormat(number(CrossSectionSegment/@slope), $xslGradeFormat, $xslGradePrecision, $xslIfSlopeExceeds, $xslAlternateSlopeFormat, $xslAlternateSlopePrecision)"/>
</td>
</xsl:for-each>
</tr>
<tr><td> </td></tr>
</xsl:for-each>
</xsl:for-each>
</xsl:for-each>
</table>
</xsl:for-each>
</xsl:for-each>
</xsl:otherwise>
</xsl:choose>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
这就是XML的第一部分生成的内容，这就是我希望它们看起来像的样子：
输出图像： Proper Layout Improper Layout
如果您需要更多信息，请提前告知我们。
答案 0 :(得分：2)
为了简化说明，我们省略HTML并只留下XSLT。
你写道 LOS-Omitted 和 LOS-Retained 分别被省略和保留。
这意味着您对属性（name）遇到的源数据感兴趣
特殊条件（其值为LOS-Retained）。
这种情况可表示为：
<xsl:for-each select=
"CrossSectionPoint[CrossSectionFeatures/CrossSectionFeature/@name = 'LOS-Retained']"/>
但如果您对此属性缺失的元素感兴趣， 你应该写道：
<xsl:for-each select=
"CrossSectionPoint[not(CrossSectionFeatures/CrossSectionFeature/@name)]"/>
如果您对两者感兴趣，请写下：
<xsl:for-each select=
"CrossSectionPoint[CrossSectionFeatures/CrossSectionFeature/@name = 'LOS-Retained']
| CrossSectionPoint[not(CrossSectionFeatures/CrossSectionFeature/@name)]">
在您的XSLT中找到相应的位置，然后添加缺少的= 'LOS-Retained'。
我在你的例子中看到，第二个子条件（＆＃34; |＆＃34;之后）也包括and @offset = 0.0。
正如你＆＃34;继承＆＃34;这个XSLT在别人之后，你必须决定是留下这个片段还是丢弃它。
如果您决定离开，请将0.0更改为'0.0'（用引号括起来）。
属性值读取为字符串，XSLT代码为＆＃34; clean＆＃34;在这种比较中使用字符串值时。
在你的评论中你写道：
...过滤掉＆＃34; CrossSectionPoints＆＃34;不包含的 ＆＃34; CrossSectionSegment＆＃34;斜率值
我想你的意图是
...过滤掉每个＆＃34; CrossSectionPoint＆＃34;那...
（注意缺少＆＃34; s＆＃34;）。
假设当前节点是CrossSectionPoint，表达此条件的谓词为：[not(CrossSectionSegment/@slope)]。
您必须决定如何将此谓词与您for-each循环中已存在的谓词连接起来
（围绕<td align="center">）。