两种:
1.xsl:if
2.xsl:choose
ex29.xsl
1.xsl:if
<xsl:if test="逻辑表达式">
</xsl:if>
</xsl:if>
2.xsl:choose
<xsl:choose>
<xsl:when test="逻辑表达式">
</xsl:when>
<xsl:when test="逻辑表达式">
</xsl:when>
<xsl:otherwise>
</xsl:otherwise>
</xsl:choose>
<xsl:when test="逻辑表达式">
</xsl:when>
<xsl:when test="逻辑表达式">
</xsl:when>
<xsl:otherwise>
</xsl:otherwise>
</xsl:choose>
例子:
ex29.xml
<?xml version="1.0" encoding="gb2312"?>
<?xml-stylesheet type="text/xsl" href="ex29.xsl"?>
<DOCUMENT>
<STOCK>
<NUMBER>000868</NUMBER>
<NAME>安凯客车</NAME>
<START>7.10</START>
<END>7.78</END>
<TRADE>69295</TRADE>
</STOCK>
<STOCK>
<NUMBER>000720</NUMBER>
<NAME>鲁能泰山</NAME>
<START>19.00</START>
<END>19.91</END>
<TRADE>34445</TRADE>
</STOCK>
<STOCK>
<NUMBER>000099</NUMBER>
<NAME>中信海直</NAME>
<START>9.95</START>
<END>9.83</END>
<TRADE>120300</TRADE>
</STOCK>
<STOCK>
<NUMBER>000926</NUMBER>
<NAME>福星科技</NAME>
<START>12.14</START>
<END>12.23</END>
<TRADE>25678</TRADE>
</STOCK>
</DOCUMENT>
<?xml-stylesheet type="text/xsl" href="ex29.xsl"?>
<DOCUMENT>
<STOCK>
<NUMBER>000868</NUMBER>
<NAME>安凯客车</NAME>
<START>7.10</START>
<END>7.78</END>
<TRADE>69295</TRADE>
</STOCK>
<STOCK>
<NUMBER>000720</NUMBER>
<NAME>鲁能泰山</NAME>
<START>19.00</START>
<END>19.91</END>
<TRADE>34445</TRADE>
</STOCK>
<STOCK>
<NUMBER>000099</NUMBER>
<NAME>中信海直</NAME>
<START>9.95</START>
<END>9.83</END>
<TRADE>120300</TRADE>
</STOCK>
<STOCK>
<NUMBER>000926</NUMBER>
<NAME>福星科技</NAME>
<START>12.14</START>
<END>12.23</END>
<TRADE>25678</TRADE>
</STOCK>
</DOCUMENT>
ex29.xsl
<?xml version="1.0" encoding="gb2312"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<html>
<head>
<title></title>
</head>
<body>
<p align="center"><font size="7">股票价格表</font></p>
<table width="90%">
<tr>
<td width="18%"><div align="center">编号</div></td>
<td width="18%"><div align="center">简称</div></td>
<td width="15%"><div align="center">开盘价</div></td>
<td width="15%"><div align="center">收盘价</div></td>
<td width="24%"><div align="center">成交量</div></td>
</tr>
<xsl:for-each select="//STOCK">
<!-- 使用xsl:choose对每个股票进行相关测试 -->
<xsl:choose>
<!-- 股票价格在下跌 -->
<xsl:when test="(END - START) div START < 0">
<tr bgcolor="#C0C0C0"><xsl:apply-templates select="NUMBER"/></tr>
</xsl:when>
<!-- 股票涨幅在5%以内 -->
<xsl:when test="(END - START) div START >= 0 and (END - START) div START < 0.05">
<tr bgcolor="#00FF00"><xsl:apply-templates select="NUMBER"/></tr>
</xsl:when>
<!-- 股票涨幅在5%-10%之间 -->
<xsl:when test="(END - START) div START >=0.05 and (END - START) div START < 0.10">
<tr bgcolor="#0000FF"><xsl:apply-templates select="NUMBER"/></tr>
</xsl:when>
<!-- 默认情况,股票涨幅在10%以上 -->
<xsl:otherwise>
<tr bgcolor="#FFFF00"><xsl:apply-templates select="NUMBER"/></tr>
</xsl:otherwise>
</xsl:choose>
</xsl:for-each>
</table>
<br/><br/>
<p align="left"><font size="4">灰色-股票正在下跌</font></p>
<p align="left"><font size="4">绿色-股票涨幅在5%以内</font></p>
<p align="left"><font size="4">蓝色-股票涨幅在5%到10%之间</font></p>
<p align="left"><font size="4">黄色-股票涨幅在10%以上</font></p>
<p align="left"><font size="4">HOT标记-交易量超过100000手的股票</font></p>
</body>
</html>
</xsl:template>
<xsl:template match="NUMBER">
<td style="font-style:楷体_gb2312; font-size:20">
<div align="center"><xsl:value-of select="."/></div>
</td>
<td style="font-style:楷体_gb2312; font-size:20">
<div align="center"><xsl:value-of select="../NAME"/></div>
</td>
<td style="font-style:楷体_gb2312; font-size:20">
<div align="center"><xsl:value-of select="../START"/></div>
</td>
<td style="font-style:楷体_gb2312; font-size:20">
<div align="center"><xsl:value-of select="../END"/></div>
</td>
<td style="font-style:楷体_gb2312; font-size:20">
<div align="center"><xsl:value-of select="../TRADE"/>
<!-- 如果采用xsl:if,如果股票交易量超过100000手,则加上HOT的标志 -->
<xsl:if test="../TRADE >= 100000">(HOT)</xsl:if></div>
</td>
</xsl:template>
</xsl:stylesheet>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<html>
<head>
<title></title>
</head>
<body>
<p align="center"><font size="7">股票价格表</font></p>
<table width="90%">
<tr>
<td width="18%"><div align="center">编号</div></td>
<td width="18%"><div align="center">简称</div></td>
<td width="15%"><div align="center">开盘价</div></td>
<td width="15%"><div align="center">收盘价</div></td>
<td width="24%"><div align="center">成交量</div></td>
</tr>
<xsl:for-each select="//STOCK">
<!-- 使用xsl:choose对每个股票进行相关测试 -->
<xsl:choose>
<!-- 股票价格在下跌 -->
<xsl:when test="(END - START) div START < 0">
<tr bgcolor="#C0C0C0"><xsl:apply-templates select="NUMBER"/></tr>
</xsl:when>
<!-- 股票涨幅在5%以内 -->
<xsl:when test="(END - START) div START >= 0 and (END - START) div START < 0.05">
<tr bgcolor="#00FF00"><xsl:apply-templates select="NUMBER"/></tr>
</xsl:when>
<!-- 股票涨幅在5%-10%之间 -->
<xsl:when test="(END - START) div START >=0.05 and (END - START) div START < 0.10">
<tr bgcolor="#0000FF"><xsl:apply-templates select="NUMBER"/></tr>
</xsl:when>
<!-- 默认情况,股票涨幅在10%以上 -->
<xsl:otherwise>
<tr bgcolor="#FFFF00"><xsl:apply-templates select="NUMBER"/></tr>
</xsl:otherwise>
</xsl:choose>
</xsl:for-each>
</table>
<br/><br/>
<p align="left"><font size="4">灰色-股票正在下跌</font></p>
<p align="left"><font size="4">绿色-股票涨幅在5%以内</font></p>
<p align="left"><font size="4">蓝色-股票涨幅在5%到10%之间</font></p>
<p align="left"><font size="4">黄色-股票涨幅在10%以上</font></p>
<p align="left"><font size="4">HOT标记-交易量超过100000手的股票</font></p>
</body>
</html>
</xsl:template>
<xsl:template match="NUMBER">
<td style="font-style:楷体_gb2312; font-size:20">
<div align="center"><xsl:value-of select="."/></div>
</td>
<td style="font-style:楷体_gb2312; font-size:20">
<div align="center"><xsl:value-of select="../NAME"/></div>
</td>
<td style="font-style:楷体_gb2312; font-size:20">
<div align="center"><xsl:value-of select="../START"/></div>
</td>
<td style="font-style:楷体_gb2312; font-size:20">
<div align="center"><xsl:value-of select="../END"/></div>
</td>
<td style="font-style:楷体_gb2312; font-size:20">
<div align="center"><xsl:value-of select="../TRADE"/>
<!-- 如果采用xsl:if,如果股票交易量超过100000手,则加上HOT的标志 -->
<xsl:if test="../TRADE >= 100000">(HOT)</xsl:if></div>
</td>
</xsl:template>
</xsl:stylesheet>