函數中字符串的拼接用:.concat(「」);express
<td class="t1">函數
<c:if test="${map.timeMap[i.expressCompany.concat(item.areaName)]==null}">---</c:if>字符串
<c:if test="${map.timeMap[i.expressCompany.concat(item.areaName)]!=null}">${map.timeMap[i.expressCompany.concat(item.areaName)]}天</c:if>it
</td>class