我只是想知道下面的代码是否有效?
<c:choose>
<c:when test="${empty example1}">
</c:when>
<c:when test="${empty example2}">
</c:when>
<c:otherwise>
</c:otherwise>
</c:choose>
我只是想知道下面的代码是否有效?
<c:choose>
<c:when test="${empty example1}">
</c:when>
<c:when test="${empty example2}">
</c:when>
<c:otherwise>
</c:otherwise>
</c:choose>
<c:choose>
<c:when test="first test">
<h2>Kpow</h2>
</c:when>
<c:when test="second test">
<h2>Blammy</h2>
</c:when>
</c:choose>
<c:choose>
<c:when test="${empty example1}">
</c:when>
<c:when test="${empty example2}">
</c:when>
<c:otherwise>
</c:otherwise>
</c:choose>
switch(int i){
case 1:
...
break;
case 2:
...
break;
default:
...
break;
}