blocks|key|208667|text|您必须使用<xsl:choose>标签重新实现它：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|208668|<xsl:choose>
++<xsl:when+test="$CreatedDate+>+$IDAppendedDate">
++++<h2>+mooooooooooooo+</h2>
++</xsl:when>
++<xsl:otherwise>
++++<h2>+dooooooooooooo+</h2>
++</xsl:otherwise>
</xsl:choose>|code-block|syntax|javascript|208669|entityMap^0|5|C|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

<p>You have to reimplement it using <code>&lt;xsl:choose&gt;</code> tag:</p>
<pre><code>&lt;xsl:choose&gt;
  &lt;xsl:when test=&quot;$CreatedDate &gt; $IDAppendedDate&quot;&gt;
    &lt;h2&gt; mooooooooooooo &lt;/h2&gt;
  &lt;/xsl:when&gt;
  &lt;xsl:otherwise&gt;
    &lt;h2&gt; dooooooooooooo &lt;/h2&gt;
  &lt;/xsl:otherwise&gt;
&lt;/xsl:choose&gt;
</code></pre>


blocks|key|426821|text|If语句用于快速检查一个条件。当您有多个选项时，请使用<xsl:choose>，如下所示：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|426822|+++<xsl:choose>
+++++<xsl:when+test="$CreatedDate+>+$IDAppendedDate">
+++++++<h2>mooooooooooooo</h2>
+++++</xsl:when>
+++++<xsl:otherwise>
++++++<h2>dooooooooooooo</h2>
+++++</xsl:otherwise>
+++</xsl:choose>|code-block|syntax|javascript|426823|此外，您还可以使用多个<xsl:when>标记来表示If+..+Else+If或Switch模式，如下所示：|426824|+++<xsl:choose>
+++++<xsl:when+test="$CreatedDate+>+$IDAppendedDate">
+++++++<h2>mooooooooooooo</h2>
+++++</xsl:when>
+++++<xsl:when+test="$CreatedDate+=+$IDAppendedDate">
+++++++<h2>booooooooooooo</h2>
+++++</xsl:when>
+++++<xsl:otherwise>
++++++<h2>dooooooooooooo</h2>
+++++</xsl:otherwise>
+++</xsl:choose>|426825|前面的示例等同于下面的伪代码：|426826|+++if+($CreatedDate+>+$IDAppendedDate)
+++{
+++++++output:+<h2>mooooooooooooo</h2>
+++}
+++else+if+($CreatedDate+=+$IDAppendedDate)
+++{
+++++++output:+<h2>booooooooooooo</h2>
+++}
+++else
+++{
+++++++output:+<h2>dooooooooooooo</h2>
+++}|426827|entityMap^0|R|C|0|0|B|A|Q|D|14|6|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Y|8|@$9|Z|A|10|B|C]|$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@]|E|$]]|$1|M|3|N|5|H|7|15|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|16|8|@]|D|@]|E|$]]|$1|Q|3|R|5|H|7|17|8|@]|D|@]|E|$I|J]]|$1|S|3|-4|5|6|7|18|8|@]|D|@]|E|$]]]|T|$]]

<p>If statement is used for checking just one condition quickly. 
When you have multiple options, use <code>&lt;xsl:choose&gt;</code> as illustrated below:</p>

<pre><code>   &lt;xsl:choose&gt;
     &lt;xsl:when test="$CreatedDate &gt; $IDAppendedDate"&gt;
       &lt;h2&gt;mooooooooooooo&lt;/h2&gt;
     &lt;/xsl:when&gt;
     &lt;xsl:otherwise&gt;
      &lt;h2&gt;dooooooooooooo&lt;/h2&gt;
     &lt;/xsl:otherwise&gt;
   &lt;/xsl:choose&gt;
</code></pre>

<p>Also, you can use multiple <code>&lt;xsl:when&gt;</code> tags to express <code>If .. Else If</code> or <code>Switch</code> patterns as illustrated below:</p>

<pre><code>   &lt;xsl:choose&gt;
     &lt;xsl:when test="$CreatedDate &gt; $IDAppendedDate"&gt;
       &lt;h2&gt;mooooooooooooo&lt;/h2&gt;
     &lt;/xsl:when&gt;
     &lt;xsl:when test="$CreatedDate = $IDAppendedDate"&gt;
       &lt;h2&gt;booooooooooooo&lt;/h2&gt;
     &lt;/xsl:when&gt;
     &lt;xsl:otherwise&gt;
      &lt;h2&gt;dooooooooooooo&lt;/h2&gt;
     &lt;/xsl:otherwise&gt;
   &lt;/xsl:choose&gt;
</code></pre>

<p>The previous example would be equivalent to the pseudocode below:</p>

<pre><code>   if ($CreatedDate &gt; $IDAppendedDate)
   {
       output: &lt;h2&gt;mooooooooooooo&lt;/h2&gt;
   }
   else if ($CreatedDate = $IDAppendedDate)
   {
       output: &lt;h2&gt;booooooooooooo&lt;/h2&gt;
   }
   else
   {
       output: &lt;h2&gt;dooooooooooooo&lt;/h2&gt;
   }
</code></pre>


blocks|key|426843|text|最直接的方法是进行第二次if-test，但条件颠倒了。这种技术比选择时嵌套块更短、更美观、更容易获得正确的效果：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|426844|<xsl:variable+name="CreatedDate"+select="@createDate"/>
+++++<xsl:variable+name="IDAppendedDate"+select="2012-01-01"+/>
+++++<b>date:+<xsl:value-of+select="$CreatedDate"/></b>+
+++++<xsl:if+test="$CreatedDate+&gt;+$IDAppendedDate">
++++++++<h2>+mooooooooooooo+</h2>
+++++</xsl:if>
+++++<xsl:if+test="$CreatedDate+&lt;=+$IDAppendedDate">
++++++++<h2>+dooooooooooooo+</h2>
+++++</xsl:if>|code-block|syntax|javascript|426845|这是一个在政府网站的样式表中使用该技术的真实示例：http://w1.weather.gov/xml/current_obs/latest_ob.xsl|offset|length|426846|entityMap|0|LINK|mutability|MUTABLE|url|http://w1.weather.gov/xml/current_obs/latest_ob.xsl^0|0|0|P|1F|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

<p>The most straight-forward approach is to do a second if-test but with the condition inverted.  This technique is shorter, easier on the eyes, and easier to get right than a choose-when-otherwise nested block:</p>

<pre><code>&lt;xsl:variable name="CreatedDate" select="@createDate"/&gt;
     &lt;xsl:variable name="IDAppendedDate" select="2012-01-01" /&gt;
     &lt;b&gt;date: &lt;xsl:value-of select="$CreatedDate"/&gt;&lt;/b&gt; 
     &lt;xsl:if test="$CreatedDate &amp;gt; $IDAppendedDate"&gt;
        &lt;h2&gt; mooooooooooooo &lt;/h2&gt;
     &lt;/xsl:if&gt;
     &lt;xsl:if test="$CreatedDate &amp;lt;= $IDAppendedDate"&gt;
        &lt;h2&gt; dooooooooooooo &lt;/h2&gt;
     &lt;/xsl:if&gt;
</code></pre>

<p>Here's a real-world example of the technique being used in the style-sheet for a government website:  <a href="http://w1.weather.gov/xml/current_obs/latest_ob.xsl" rel="nofollow">http://w1.weather.gov/xml/current_obs/latest_ob.xsl</a></p>


<p>I am trying to implement an if -else statement in XSLT but my code just doesn't parse.  Does anyone have any ideas?</p>

<pre><code>  &lt;xsl:variable name="CreatedDate" select="@createDate"/&gt;
  &lt;xsl:variable name="IDAppendedDate" select="2012-01-01" /&gt;
  &lt;b&gt;date: &lt;xsl:value-of select="$CreatedDate"/&gt;&lt;/b&gt; 

  &lt;xsl:if test="$CreatedDate &gt; $IDAppendedDate"&gt;
    &lt;h2&gt; mooooooooooooo &lt;/h2&gt;
  &lt;/xsl:if&gt;
  &lt;xsl:else&gt;
    &lt;h2&gt; dooooooooooooo &lt;/h2&gt;
  &lt;/xsl:else&gt;
</code></pre>


How to implement if-else statement in XSLT?

我试图在XSLT中实现一个if -else语句，但是我的代码就是不能解析。有谁有什么想法吗？  <xsl:variable name="CreatedDate" select="@createDate"/>  <xsl:variable name="IDAppendedDate" select="2012-01-01"...

问如何在XSLT中实现if-else语句？
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何在XSLT中实现if-else语句？EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何在XSLT中实现if-else语句？
EN