<c:forEach items="${b.goodMap}" var="entry" varStatus="status"> ${entry.key}(${fn:length(entry.value)})${status.last?"":", "} </c:forEach>
方式2: ${entry.key}(${fn:length(entry.value)}) <c:choose> <c:when test="${status.last}"> </c:when> <c:otherwise> ,&nbsp; </c:otherwise> </c:choose>
開始做,堅持做,重複做